The Universal Radio Hacker (URH) is a software for investigating unknown wireless protocols. Features INclude * __hardware interfaces__ for common Software Defined Radios * __easy demodulation__ of signals * __assigning participants__ to keep overview of your data * __customizable decodings__ to crack even sophisticated encodings like CC1101 data whitening * __assign labels__ to reveal the logic of the protocol * __fuzzing component__ to find security leaks * __modulation support__ to inject the data back into the system * __simulation environment__ to perform stateful attacks
标签： Universal Hacker Radio The URH
上传时间： 2018-11-23
上传用户：milo
DESCRIPTION The Texas Instruments MSP430 family of ultra-low-power microcontrollers consists of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with five low-power modes, is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 1 μs. The MSP430G2x13 and MSP430G2x53 series are ultra-low-power mixed signal microcontrollers with built-in 16- bit timers, up to 24 I/O capacitive-touch enabled pins, a versatile analog comparator, and built-in communication capability using the universal serial communication interface. In addition the MSP430G2x53 family members have a 10-bit analog-to-digital (A/D) converter. For configuration details see Table 1. Typical applications INclude low-cost sensor systems that capture analog signals, convert them to digital values, and then process the data for display or for transmission to a host system.
上传时间： 2018-12-25
上传用户：ygyh
#INclude<stdio.h> #INclude<string.h> #INclude<stdlib.h> #define N 100 int iNumOfStu=0; struct score { float math; float english; float computer; }; struct student { int number; char name[20]; struct score sco; float average; }; struct student stu[N]; void print_menu(void);//输出菜单 void choosemenu(void);//菜单选择 void input_student1(int);//输入学生信息 void input_student2(void);//输入总函数 void input_student3(int &,int);//判断学号是否重复 void input_student4(int,int);//覆盖原信息 void sort_student3(student s[],int);//按照英语成绩排序 void sort_student4(student s[],int);//按照计算机成绩排序 void sort_student2(student s[],int);//按照数学成绩排序 void sort_student5(student s[],int);//按照平均成绩排序 float input_score2(int);//计算学生平均成绩 void print_student2(void);//显示表头 void print_student3(int);//显示学生信息 void print_student1(int);//显示全部学生资料 void sort_student1(void);//排序总函数 void menu(void);//菜单调度总函数 int search_student2(int);//按学号查询学生信息并输出 void search_student3(int);//按平均分最高查询并输出 void search_student1(void);//查询总函数 void delete_student2(int,int);//删除学生信息 void delete_student1(void);//删除总函数 void change_student2(int);//修改学生资料 void change_student1(void);//修改总函数 void input_score3(int);//统计成绩 void input_score1(void);//统计成绩总函数 void print_help(void);//输出帮助信息 void exit_student(void);//退出系统 void save_student(student *,int);//保存学生信息 void main() { menu(); } void save_student(student *s,int a)//保存学生信息 { FILE *fp; if((fp=fopen("d:\\学生信息.txt","wb"))==NULL) { printf("不能打开文件！\n"); } else { printf("保存信息到D盘\n"); fprintf(fp,"本班所有学生具体信息如下：\r\n"); fprintf(fp," 学号 姓名 数学成绩 英语成绩 计算机成绩 平均成绩\r\n"); for(int i=0;i<a;i++) { fprintf(fp,"%8d%12s%14.2f%14.2f%14.2f%14.2f\n",stu[i].number,stu[i].name,stu[i].sco.math,stu[i].sco.english,stu[i].sco.computer,stu[i].average); fprintf(fp,"\r\n"); } fclose(fp); printf("信息保存成功！\n"); } } void exit_student(void)//退出系统 { exit(1); } void print_help(void)//输出帮助信息 { printf("本系统所能容纳的最大学生数为%d人\n学生信息保存在D盘根目录下，保存文件为“学生信息.txt”。\n感谢使用！\n",N); } void input_score1(void)//统计成绩总函数 { int c; c=search_student2(iNumOfStu); printf("学号：%d\n",stu[c].number); printf("姓名：%s\n",stu[c].name); input_score3(c); printf("新成绩录入成功！\n"); stu[c].average=input_score2(c); } void input_score3(int a)//统计成绩 { printf("数学新成绩："); scanf("%f",&stu[a].sco.math); printf("英语新成绩："); scanf("%f",&stu[a].sco.english); printf("计算机新成绩："); scanf("%f",&stu[a].sco.computer); } void change_student2(int a)//修改学生资料 { printf("学号：%d----修改为：",stu[a].number); scanf("%d",&stu[a].number); getchar(); printf("姓名：%s----修改为：",stu[a].name); gets(stu[a].name); printf("数学成绩：%.2f----修改为：",stu[a].sco.math); scanf("%f",&stu[a].sco.math); printf("英语成绩：%.2f----修改为：",stu[a].sco.english); scanf("%f",&stu[a].sco.english); printf("计算机成绩：%.2f----修改为：",stu[a].sco.computer); scanf("%f",&stu[a].sco.computer); } void change_student1(void)//修改总函数 { int c; c=search_student2(iNumOfStu); getchar(); printf("是否要修改此学生信息？（“y”代表是）"); char d; scanf("%c",&d); if(d=='y'||d=='Y') { change_student2(c); stu[c].average=input_score2(c); printf("信息修改成功！\n"); } } void delete_student1(void)//删除总函数 { int c; c=search_student2(iNumOfStu); getchar(); printf("是否删除此条记录？（“y”代表是）"); char d; scanf("%c",&d); if(d=='y'||d=='Y') { delete_student2(c,iNumOfStu); printf("记录已删除！\n"); } } void delete_student2(int a,int b)//删除学生信息 { for(int i=a;i<b-1;i++) { stu[i]=stu[i+1]; } --iNumOfStu; } void search_student1(void)//查询总函数 { printf("1、按学号查询\n2、按平均分最高查询\n请选择："); int c; scanf("%d",&c); switch(c) { case 1: { search_student2(iNumOfStu); break; } case 2: { search_student3(iNumOfStu); break; } default: break; } } void menu(void)//菜单调度总函数 { print_menu(); choosemenu(); } void sort_student1(void)//排序总函数 { printf("1、按数学成绩排序\n2、按英语成绩排序\n3、按计算机成绩排序\n4、按平均成绩排序\n请选择："); int c; scanf("%d",&c); switch(c) { case 1: { sort_student2(stu,iNumOfStu); break; } case 2: { sort_student3(stu,iNumOfStu); break; } case 3: { sort_student4(stu,iNumOfStu); break; } case 4: { sort_student5(stu,iNumOfStu); break; } default: break; } } void print_student1(int a)//显示全部学生资料 { printf("本班所有学生具体信息如下\n"); print_student2(); for(int i=0;i<a;i++) { print_student3(i); } } void print_student3(int a)//显示学生信息 { printf("%8d%12s%14.2f%14.2f%14.2f%14.2f\n",stu[a].number,stu[a].name,stu[a].sco.math,stu[a].sco.english,stu[a].sco.computer,stu[a].average); } void print_student2(void)//显示表头 { printf(" 学号 姓名 数学成绩 英语成绩 计算机成绩 平均成绩\n"); } void input_student4(int a,int b)//覆盖原信息 { stu[a]=stu[b-1]; --iNumOfStu; } void input_student3(int &a,int b)//判断学号是否重复 { if(a!=0) { int i=0; do { if(stu[a].number==stu[i].number) { printf("此学号代表的学生已录入\n1、覆盖原信息\n2、重新输入\n请选择："); int c; scanf("%d",&c); switch(c) { case 1: { input_student4(i,iNumOfStu); a=iNumOfStu-1; printf("信息已替换！\n"); break; } case 2: { printf("请重新输入学生信息：\n"); input_student1(iNumOfStu-1); break; } default: break; } break; } ++i; } while(i<b-1); } } void print_menu(void)//输出菜单 { printf("======欢迎来到学生信息管理系统======\n"); printf(" 1、输入学生资料\n"); printf(" 2、删除学生资料\n"); printf(" 3、查询学生资料\n"); printf(" 4、修改学生资料\n"); printf(" 5、显示学生资料\n"); printf(" 6、统计学生成绩\n"); printf(" 7、排序学生成绩\n"); printf(" 8、保存学生资料\n"); printf(" 9、获取帮助信息\n"); printf(" 10、退出系统\n"); printf("====================================\n"); printf("请选择："); } void input_student2(void)//输入总函数 { char end; printf("请输入学生信息（在最后一个学生信息录入完成后以“/”结束录入）：\n"); for(int i=0;(end=getchar())!='/';i++) { input_student1(i); ++iNumOfStu; input_student3(i,iNumOfStu); } for(int j=0;j<iNumOfStu;j++) { stu[j].average=input_score2(j); } } void input_student1(int a)//输入学生信息 { printf("学号："); scanf("%d",&stu[a].number); getchar(); printf("姓名："); gets(stu[a].name); printf("数学成绩："); scanf("%f",&stu[a].sco.math); printf("英语成绩："); scanf("%f",&stu[a].sco.english); printf("计算机成绩："); scanf("%f",&stu[a].sco.computer); } float input_score2(int a)//计算学生平均成绩 { return (stu[a].sco.math+stu[a].sco.english+stu[a].sco.computer)/3; } void search_student3(int a)//按平均分最高查询并输出 { int max=0; for(int i=0;i<a;i++) { if(stu[max].average<stu[i].average) { max=i; } } print_student2(); print_student3(max); } void sort_student2(student s[],int a)//按照数学成绩排序 { struct student temp; for(int i=0;i<a-1;i++) { int max=i; for(int j=i+1;j<a;j++) if(stu[j].sco.math>stu[max].sco.math) { max=j; } if(max!=i) { temp=stu[max]; stu[max]=stu[i]; stu[i]=temp; } } print_student2(); for(int k=0;k<a;k++) { print_student3(k); } } void sort_student3(student s[],int a)//按照英语成绩排序 { struct student temp; for(int i=0;i<a-1;i++) { int max=i; for(int j=i+1;j<a;j++) if(stu[j].sco.english>stu[max].sco.english) { max=j; } if(max!=i) { temp=stu[max]; stu[max]=stu[i]; stu[i]=temp; } } print_student2(); for(int k=0;k<a;k++) { print_student3(k); } } void sort_student4(student s[],int a)//按照计算机成绩排序 { struct student temp; for(int i=0;i<a-1;i++) { int max=i; for(int j=i+1;j<a;j++) if(stu[j].sco.computer>stu[max].sco.computer) { max=j; } if(max!=i) { temp=stu[max]; stu[max]=stu[i]; stu[i]=temp; } } print_student2(); for(int k=0;k<a;k++) { print_student3(k); } } void sort_student5(student s[],int a)//按照平均成绩排序 { struct student temp; for(int i=0;i<a-1;i++) { int max=i; for(int j=i+1;j<a;j++) if(stu[j].average>stu[max].average) { max=j; } if(max!=i) { temp=stu[max]; stu[max]=stu[i]; stu[i]=temp; } } print_student2(); for(int k=0;k<a;k++) { print_student3(k); } } int search_student2(int a)//按照学号查找学生并输出 { int num; int c; printf("请输入要查询的学号："); scanf("%d",&num); for(int i=0;i<a;i++) { if(num==stu[i].number) { c=i; } } printf("此学生的信息是：\n"); print_student2(); print_student3(c); return c; } void choosemenu(void)//菜单选择 { int i; scanf("%d",&i); switch(i) { case 1: { input_student2(); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 2: { delete_student1(); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 3: { search_student1(); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 4: { change_student1(); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 5: { print_student1(iNumOfStu); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 6: { input_score1(); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 7: { sort_student1(); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 8: { save_student(stu,iNumOfStu); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 9: { print_help(); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 10: { exit_student(); } default: break; } } 运行结果： 源文件下载地址： http://115.com/file/clnq138g#一个简单的学生成绩管理系统.rar （请将此地址复制到浏览器地址栏中访问下载页面）
标签： 成绩查询系统
上传时间： 2019-06-08
上传用户：啊的撒旦
#INclude<stdio.h> #INclude<string.h> #INclude<stdlib.h> #define N 100 int iNumOfStu=0; struct score { float math; float english; float computer; }; struct student { int number; char name[20]; struct score sco; float average; }; struct student stu[N]; void print_menu(void);//输出菜单 void choosemenu(void);//菜单选择 void input_student1(int);//输入学生信息 void input_student2(void);//输入总函数 void input_student3(int &,int);//判断学号是否重复 void input_student4(int,int);//覆盖原信息 void sort_student3(student s[],int);//按照英语成绩排序 void sort_student4(student s[],int);//按照计算机成绩排序 void sort_student2(student s[],int);//按照数学成绩排序 void sort_student5(student s[],int);//按照平均成绩排序 float input_score2(int);//计算学生平均成绩 void print_student2(void);//显示表头 void print_student3(int);//显示学生信息 void print_student1(int);//显示全部学生资料 void sort_student1(void);//排序总函数 void menu(void);//菜单调度总函数 int search_student2(int);//按学号查询学生信息并输出 void search_student3(int);//按平均分最高查询并输出 void search_student1(void);//查询总函数 void delete_student2(int,int);//删除学生信息 void delete_student1(void);//删除总函数 void change_student2(int);//修改学生资料 void change_student1(void);//修改总函数 void input_score3(int);//统计成绩 void input_score1(void);//统计成绩总函数 void print_help(void);//输出帮助信息 void exit_student(void);//退出系统 void save_student(student *,int);//保存学生信息 void main() { menu(); } void save_student(student *s,int a)//保存学生信息 { FILE *fp; if((fp=fopen("d:\\学生信息.txt","wb"))==NULL) { printf("不能打开文件！\n"); } else { printf("保存信息到D盘\n"); fprintf(fp,"本班所有学生具体信息如下：\r\n"); fprintf(fp," 学号 姓名 数学成绩 英语成绩 计算机成绩 平均成绩\r\n"); for(int i=0;i<a;i++) { fprintf(fp,"%8d%12s%14.2f%14.2f%14.2f%14.2f\n",stu[i].number,stu[i].name,stu[i].sco.math,stu[i].sco.english,stu[i].sco.computer,stu[i].average); fprintf(fp,"\r\n"); } fclose(fp); printf("信息保存成功！\n"); } } void exit_student(void)//退出系统 { exit(1); } void print_help(void)//输出帮助信息 { printf("本系统所能容纳的最大学生数为%d人\n学生信息保存在D盘根目录下，保存文件为“学生信息.txt”。\n感谢使用！\n",N); } void input_score1(void)//统计成绩总函数 { int c; c=search_student2(iNumOfStu); printf("学号：%d\n",stu[c].number); printf("姓名：%s\n",stu[c].name); input_score3(c); printf("新成绩录入成功！\n"); stu[c].average=input_score2(c); } void input_score3(int a)//统计成绩 { printf("数学新成绩："); scanf("%f",&stu[a].sco.math); printf("英语新成绩："); scanf("%f",&stu[a].sco.english); printf("计算机新成绩："); scanf("%f",&stu[a].sco.computer); } void change_student2(int a)//修改学生资料 { printf("学号：%d----修改为：",stu[a].number); scanf("%d",&stu[a].number); getchar(); printf("姓名：%s----修改为：",stu[a].name); gets(stu[a].name); printf("数学成绩：%.2f----修改为：",stu[a].sco.math); scanf("%f",&stu[a].sco.math); printf("英语成绩：%.2f----修改为：",stu[a].sco.english); scanf("%f",&stu[a].sco.english); printf("计算机成绩：%.2f----修改为：",stu[a].sco.computer); scanf("%f",&stu[a].sco.computer); } void change_student1(void)//修改总函数 { int c; c=search_student2(iNumOfStu); getchar(); printf("是否要修改此学生信息？（“y”代表是）"); char d; scanf("%c",&d); if(d=='y'||d=='Y') { change_student2(c); stu[c].average=input_score2(c); printf("信息修改成功！\n"); } } void delete_student1(void)//删除总函数 { int c; c=search_student2(iNumOfStu); getchar(); printf("是否删除此条记录？（“y”代表是）"); char d; scanf("%c",&d); if(d=='y'||d=='Y') { delete_student2(c,iNumOfStu); printf("记录已删除！\n"); } } void delete_student2(int a,int b)//删除学生信息 { for(int i=a;i<b-1;i++) { stu[i]=stu[i+1]; } --iNumOfStu; } void search_student1(void)//查询总函数 { printf("1、按学号查询\n2、按平均分最高查询\n请选择："); int c; scanf("%d",&c); switch(c) { case 1: { search_student2(iNumOfStu); break; } case 2: { search_student3(iNumOfStu); break; } default: break; } } void menu(void)//菜单调度总函数 { print_menu(); choosemenu(); } void sort_student1(void)//排序总函数 { printf("1、按数学成绩排序\n2、按英语成绩排序\n3、按计算机成绩排序\n4、按平均成绩排序\n请选择："); int c; scanf("%d",&c); switch(c) { case 1: { sort_student2(stu,iNumOfStu); break; } case 2: { sort_student3(stu,iNumOfStu); break; } case 3: { sort_student4(stu,iNumOfStu); break; } case 4: { sort_student5(stu,iNumOfStu); break; } default: break; } } void print_student1(int a)//显示全部学生资料 { printf("本班所有学生具体信息如下\n"); print_student2(); for(int i=0;i<a;i++) { print_student3(i); } } void print_student3(int a)//显示学生信息 { printf("%8d%12s%14.2f%14.2f%14.2f%14.2f\n",stu[a].number,stu[a].name,stu[a].sco.math,stu[a].sco.english,stu[a].sco.computer,stu[a].average); } void print_student2(void)//显示表头 { printf(" 学号 姓名 数学成绩 英语成绩 计算机成绩 平均成绩\n"); } void input_student4(int a,int b)//覆盖原信息 { stu[a]=stu[b-1]; --iNumOfStu; } void input_student3(int &a,int b)//判断学号是否重复 { if(a!=0) { int i=0; do { if(stu[a].number==stu[i].number) { printf("此学号代表的学生已录入\n1、覆盖原信息\n2、重新输入\n请选择："); int c; scanf("%d",&c); switch(c) { case 1: { input_student4(i,iNumOfStu); a=iNumOfStu-1; printf("信息已替换！\n"); break; } case 2: { printf("请重新输入学生信息：\n"); input_student1(iNumOfStu-1); break; } default: break; } break; } ++i; } while(i<b-1); } } void print_menu(void)//输出菜单 { printf("======欢迎来到学生信息管理系统======\n"); printf(" 1、输入学生资料\n"); printf(" 2、删除学生资料\n"); printf(" 3、查询学生资料\n"); printf(" 4、修改学生资料\n"); printf(" 5、显示学生资料\n"); printf(" 6、统计学生成绩\n"); printf(" 7、排序学生成绩\n"); printf(" 8、保存学生资料\n"); printf(" 9、获取帮助信息\n"); printf(" 10、退出系统\n"); printf("====================================\n"); printf("请选择："); } void input_student2(void)//输入总函数 { char end; printf("请输入学生信息（在最后一个学生信息录入完成后以“/”结束录入）：\n"); for(int i=0;(end=getchar())!='/';i++) { input_student1(i); ++iNumOfStu; input_student3(i,iNumOfStu); } for(int j=0;j<iNumOfStu;j++) { stu[j].average=input_score2(j); } } void input_student1(int a)//输入学生信息 { printf("学号："); scanf("%d",&stu[a].number); getchar(); printf("姓名："); gets(stu[a].name); printf("数学成绩："); scanf("%f",&stu[a].sco.math); printf("英语成绩："); scanf("%f",&stu[a].sco.english); printf("计算机成绩："); scanf("%f",&stu[a].sco.computer); } float input_score2(int a)//计算学生平均成绩 { return (stu[a].sco.math+stu[a].sco.english+stu[a].sco.computer)/3; } void search_student3(int a)//按平均分最高查询并输出 { int max=0; for(int i=0;i<a;i++) { if(stu[max].average<stu[i].average) { max=i; } } print_student2(); print_student3(max); } void sort_student2(student s[],int a)//按照数学成绩排序 { struct student temp; for(int i=0;i<a-1;i++) { int max=i; for(int j=i+1;j<a;j++) if(stu[j].sco.math>stu[max].sco.math) { max=j; } if(max!=i) { temp=stu[max]; stu[max]=stu[i]; stu[i]=temp; } } print_student2(); for(int k=0;k<a;k++) { print_student3(k); } } void sort_student3(student s[],int a)//按照英语成绩排序 { struct student temp; for(int i=0;i<a-1;i++) { int max=i; for(int j=i+1;j<a;j++) if(stu[j].sco.english>stu[max].sco.english) { max=j; } if(max!=i) { temp=stu[max]; stu[max]=stu[i]; stu[i]=temp; } } print_student2(); for(int k=0;k<a;k++) { print_student3(k); } } void sort_student4(student s[],int a)//按照计算机成绩排序 { struct student temp; for(int i=0;i<a-1;i++) { int max=i; for(int j=i+1;j<a;j++) if(stu[j].sco.computer>stu[max].sco.computer) { max=j; } if(max!=i) { temp=stu[max]; stu[max]=stu[i]; stu[i]=temp; } } print_student2(); for(int k=0;k<a;k++) { print_student3(k); } } void sort_student5(student s[],int a)//按照平均成绩排序 { struct student temp; for(int i=0;i<a-1;i++) { int max=i; for(int j=i+1;j<a;j++) if(stu[j].average>stu[max].average) { max=j; } if(max!=i) { temp=stu[max]; stu[max]=stu[i]; stu[i]=temp; } } print_student2(); for(int k=0;k<a;k++) { print_student3(k); } } int search_student2(int a)//按照学号查找学生并输出 { int num; int c; printf("请输入要查询的学号："); scanf("%d",&num); for(int i=0;i<a;i++) { if(num==stu[i].number) { c=i; } } printf("此学生的信息是：\n"); print_student2(); print_student3(c); return c; } void choosemenu(void)//菜单选择 { int i; scanf("%d",&i); switch(i) { case 1: { input_student2(); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 2: { delete_student1(); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 3: { search_student1(); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 4: { change_student1(); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 5: { print_student1(iNumOfStu); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 6: { input_score1(); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 7: { sort_student1(); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 8: { save_student(stu,iNumOfStu); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 9: { print_help(); printf("按回车键返回主菜单"); getchar(); getchar(); menu(); break; } case 10: { exit_student(); } default: break; } } 运行结果： 源文件下载地址： http://115.com/file/clnq138g#一个简单的学生成绩管理系统.rar （请将此地址复制到浏览器地址栏中访问下载页面） #INclude<stdio.h> #INclude<string.h> #INclude<stdlib.h> #define N 100 int iNumOfStu=0; struct score { float math; float english; float computer; }; struct student { int number; char name[20]; struct score sco; float average; }; struct student stu[N]; void print_menu(void);//输出菜单 void choosemenu(void);//菜单选择 void input_student1(int);//输入学生信息 void input_student2(void);//输入总函数 void input_student3(int &,int);//判断学号是否重复 void input_student4(int,int);//覆盖原信息 void sort_student3(student s[],int);//按照英语成绩排序 void sort_student4(student s[],int);//按照计算机成绩排序 void sort_student2(student s[],int);//按照数学成绩排序 void sort_student5(student s[],int);//按照平均成绩排序 float input_score2(int);//计算学生平均成绩 void print_student2(void);//显示表头 void print_student3(int);//显示学生信息 void print_student1(int);//显示全部学生资料 void sort_student1(void);//排序总函数 void menu(void);//菜单调度总函数 int search_student2(int);//按学号查询学生信息并输出 void search_student3(int);//按平均分最高查询并输出 void search_student1(void);//查询总函数 void delete_student2(int,int);//删除学生信息 void delete_student1(void);//删除总函数 void change_student2(int);//修改学生资料 void change_student1(void);//修改总函数 void input_score3(int);//统计成绩 void input_score1(void);//统计成绩总函数 void print_help(void);//输出帮助信息 void exit_student(void);//退出系统 void save_student(student *,int);//保存学生信息 void main() { menu(); } void save_student(student *s,int a)//保存学生信息 { FILE *fp; if((fp=fopen("d:\\学生信息.txt","wb"))==NULL) { printf("不能打开文件！\n"); } else { printf("保存信息到D盘\n"); fprintf(fp,"本班所有学生具体信息如下：\r\n"); fprintf(fp," 学号 姓名 数学成绩 英语成绩 计算机成绩 平均成绩\r\n"); for(int i=0;i<a;i++) { fprintf(fp,"%8d%12s%14.2f%14.2f%14.2f%14.2f\n",stu[i].number,stu[i].name,stu[i].sco.math,stu[i].sco.english,stu[i].sco.computer,stu[i].average); fprintf(fp,"\r\n"); } fclose(fp); printf("信息保存成功！\n"); } } void exit_student(void)//退出系统 { exit(1); } void print_help(void)//输出帮助信息 { printf("本系统所能容纳的最大学生数为%d人\n学生信息保存在D盘根目录下，保存文件为“学生信息.txt”。\n感谢使用！\n",N); } void input_score1(void)//统计成绩总函数 { int c; c=search_student2(iNumOfStu); printf("学号：%d\n",stu[c].number); printf("姓名：%s\n",stu[c].name); input_score3(c); printf("新成绩录入成功！
标签： c语言
上传时间： 2019-06-09
上传用户：啊的撒旦
# INclude<stdio.h> # INclude<math.h> # define N 3 main(){ float NF2(float *x,float *y); float A[N][N]={{10,-1,-2},{-1,10,-2},{-1,-1,5}}; float b[N]={7.2,8.3,4.2},sum=0; float x[N]= {0,0,0},y[N]={0},x0[N]={}; int i,j,n=0; for(i=0;i<N;i++) { x[i]=x0[i]; } for(n=0;;n++){ //计算下一个值 for(i=0;i<N;i++){ sum=0; for(j=0;j<N;j++){ if(j!=i){ sum=sum+A[i][j]*x[j]; } } y[i]=(1/A[i][i])*(b[i]-sum); //sum=0; } //判断误差大小 if(NF2(x,y)>0.01){ for(i=0;i<N;i++){ x[i]=y[i]; } } else break; } printf("经过%d次雅可比迭代解出方程组的解：\n",n+1); for(i=0;i<N;i++){ printf("%f ",y[i]); } } //求两个向量差的二范数函数 float NF2(float *x,float *y){ int i; float z,sum1=0; for(i=0;i<N;i++){ sum1=sum1+pow(y[i]-x[i],2); } z=sqrt(sum1); return z; }
上传时间： 2019-10-13
上传用户：大萌萌撒
源码，放在vc98 INclude下面就行了，不需要其他操作。
标签： dshow
上传时间： 2019-12-11
上传用户：z627329135
Abstract—In the future communication applications, users may obtain their messages that have different importance levels distributively from several available sources, such as distributed storage or even devices belonging to other users. This scenario is the best modeled by the multilevel diversity coding systems (MDCS). To achieve perfect (information-theoretic) secrecy against wiretap channels, this paper investigates the fundamental limits on the secure rate region of the asymmetric MDCS (AMDCS), which INclude the symmetric case as a special case. Threshold perfect secrecy is added to the AMDCS model. The eavesdropper may have access to any one but not more than one subset of the channels but know nothing about the sources, as long as the size of the subset is not above the security level. The question of whether superposition (source separation) coding is optimal for such an AMDCS with threshold perfect secrecy is answered. A class of secure AMDCS (S-AMDCS) with an arbitrary number of encoders is solved, and it is shown that linear codes are optimal for this class of instances. However, in contrast with the secure symmetric MDCS, superposition is shown to be not optimal for S-AMDCS in general. In addition, necessary conditions on the existence of a secrecy key are determined as a design guideline.
标签： Fundamental Limits Secure Class on of
上传时间： 2020-01-04
上传用户：kddlas
The Internet of Things is considered to be the next big opportunity, and challenge, for the Internet engineering community, users of technology, companies and society as a whole. It involves connecting embedded devices such as sensors, home appliances, weather stations and even toys to Internet Protocol (IP) based networks. The number of IP-enabled embedded devices is increasing rapidly, and although hard to estimate, will surely outnumber the number of personal computers (PCs) and servers in the future. With the advances made over the past decade in microcontroller,low-power radio, battery and microelectronic technology, the trend in the industry is for smart embedded devices (called smart objects) to become IP-enabled, and an integral part of the latest services on the Internet. These services are no longer cyber, just including data created by humans, but are to become very connected to the physical world around us by including sensor data, the monitoring and control of machines, and other kinds of physical context. We call this latest frontier of the Internet, consisting of wireless low-power embedded devices, the Wireless Embedded Internet. Applications that this new frontier of the Internet enable are critical to the sustainability, efficiency and safety of society and INclude home and building automation, healthcare, energy efficiency, smart grids and environmental monitoring to name just a few.
标签： Embedded Internet Wireless 6LoWPAN The
上传时间： 2020-05-26
上传用户：shancjb
This book gives a comprehensive overview of the technologies for the advances of mobile radio access networks. The topics covered INclude linear transmitters, superconducting filters and cryogenic radio frequency (RF) front head, radio over fiber, software radio base stations, mobile terminal positioning, high speed downlink packet access (HSDPA), multiple antenna systems such as smart antennas and multiple input and multiple output (MIMO) systems, orthogonal frequency division multiplexing (OFDM) systems, IP-based radio access networks (RAN), autonomic networks, and ubiquitous networks.
标签： Advances Networks Access Mobile Radio in
上传时间： 2020-05-26
上传用户：shancjb
Mobile radio networks have risen in prominence over the last few years, primarily by the rise in popularity of cellular phones. It is important to recognise however that mobile radio technology fulfils a far wider range of applications that meet the demands of the modern world. These INclude the networks that allow police and emergency services to serve the public, military networks for operations and humanitarian support, and the mobile technol- ogies that are vital to the safety of aircraft.
标签： Network Mobile Design Radio
上传时间： 2020-05-30
上传用户：shancjb
