1/17||1/18

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<pre class="cpp" name="code">#include <stdio.h>  //votes programint main(){    char vote;    scanf("%c",&vote);    switch(vote){    case 'Y':   //print agree  if get 'Y' or 'y'    case 'y':        printf("agree\n");break;    case 'N':    case 'n':        printf("disagree\n");break;    default:        printf("lose\n");break;    }return 0;}//points to degree#include <stdio.h>int main(){    float points;    scanf("%f",&points);    switch((points>=90)+(points>=80)+(points>=70)+(points>=60))    {    case 4:        printf("A\n");break;    case 3:        printf("B\n");break;    case 2:        printf("C\n");break;    case 1:        printf("D\n");break;    case 0:        printf("E\n");break;    }    return 0;}//How many days this months//Input years and months//simple 2004 2 or 2010 4#include <stdio.h>int main(){    int years,months,days;    scanf("%d %d",&years,&months);    switch(((years%400==0)||(years%4==0&&years%100!=0))+(months==2))    {    case 2:        printf("This months has %d days.\n",29);break;    default:        switch((months==1||months==3||months==5||months==7||months==8||months==10||months==11)+(months!=2))        {            case 2:days=31;break;            case 1:days=30;break;            case 0:days=28;break;        }          printf("This months has %d days.\n",days);    }    return 0;}//calculate funchtion value of x// f=x x<2// x*x+1  2<=x<6// sqrt(x+1)  6<=x<10// 1/(x+1)  x>=10#include <stdio.h>#include <math.h>int main(){    double x;    double y;    scanf("%lf",&x);    switch((x>=2)+(x>=6)+(x>=10))    {      case 0:          y=x;break;      case 1:        y=x*x+1;break;      case 2:        y=sqrt(x+1);break;      case 3:        y=1/(x+1);break;    }    printf("Answer is %15.10f",y);    return 0;}//calculate individual income tax//tax threshold is 3500//outrange part 0~1500  3% minus 0//1500~4500 10% 105//4500~900 20%   555//9000~35000 25%  1005//35000 55000 30%   2755//55000 80000 35%    5505//over 8000 45%    13505// tax=(income-3500)*taxrate - ***

//calculate individual income tax//tax threshold is 3500//outrange part 0~1500  3% minus 0//1500~4500 10% 105//4500~9000 20%   555//9000~35000 25%  1005//35000 55000 30%   2755//55000 80000 35%    5505//over 80000 45%    13505// tax=(income-3500)*taxrate - ***#include <stdio.h>int main(){    printf("You want to know how much your individual income Tax?\nInsert your income\nsimple :6700\n");    double income,outrange,tax;    scanf("%lf",&income);    outrange=income-3500.0;    switch((outrange>=0)+(outrange>=1500)+(outrange>=4500)+(outrange>=9000)+(outrange>=35000)+(outrange>=55000)+(outrange>=80000))    {    case 0:        tax=0;break;    case 1:        tax=outrange*3.0/100.0;break;    case 2:        tax=outrange*10.0/100.0-105;break;    case 3:        tax=outrange*20.0/100.0-555;break;    case 4:        tax=outrange*25.0/100-1005;break;    case 5:        tax=outrange*30/100-2755;break;    case 6:        tax=outrange*35/100-5505;break;    case 7:        tax=outrange*45/100-13505;break;    }     printf("您本月应缴个人所和税 %.2lf 元，税后收入是 %.2lf 元。\n", tax, income-tax);    printf("依法纳税，共享繁荣。谢谢使用！\n");    return 0;}

//字符

#include <stdio.h>

int main()

 printf("Name\tAge\tSalary\taddr\n");

printf("Tom\t%d\t%6.1f\t%s\n",20,314.2,"NewYork");

printf("Jerry\t%d\t%6.1f\t%s\n",22,7876.4,"Beijing");

 printf("Blotu\t%d\t%6.1f\t%s\n",9,5.5,"Shanghai");

return 0;

/*欢迎使用利息计算器！请输入存款金额：======存款期限======1. 活期存款2. 3个月3. 6个月4. 一年5. 二年6. 三年7. 五年请输入存款期限的代号：1请输入存款天数：50到期利息为0.694444元，本息合计共1000.69元感谢您的使用，欢迎下次光临！*//*输入存款金额并选择存款种类，计算出利息（不计利息税）和本息合计。要求使用switch语句，根据选择的存款种类，确定利率和存期后计算。提示：利息=金额×年利率×存期（单位：年，3个月为0.25年，6个月为0.5年）。例如：1000元存6个月，利息=1000×0.033×0.5=16.5元利率使用2011年7月7日公布的年利率：3个月  3.10%，6个月 3.30%，一年 3.50%，二年 4.40%，三年 5.00%，五年 5.50%。*/#include <stdio.h>int main(){    double principal,interest;    printf("欢迎使用利息计算器！\n");    printf("请输入存款金额\n");    scanf("%lf",&principal);    printf("======存款金额======\n");    printf("1. 活期存款\n");    printf("2. 3个月\n");    printf("3. 6个月\n");    printf("4. 一年\n");    printf("5. 二年\n");    printf("6. 三年\n");    printf("7. 五年\n");    int c;    scanf("%d",&c);    double period,rate;    switch(c)    {        case 1:            printf("请输入存款天数\n");            scanf("%lf",&period);            period=period/30.0/12.0;            rate=0.031;            break;        case 2:period=0.25;rate=0.031;break;        case 3:period=0.5;rate=0.030;break;        case 4:period=1.0;rate=0.035;break;        case 5:period=2.0;rate=0.040;break;        case 6:period=3.0;rate=0.050;break;        case 7:period=5.0;rate=0.050;break;        default :printf("输入无效\n");return 0;    }    interest=principal*period*rate;    printf("到期利息为 %.2f 元，本息合计共 %.2f 元\n",interest,principal+interest);    printf("感谢您的使用，欢迎下次光临！\n");    return 0;}

/*构造菜单*/#include <stdio.h>int main(){    printf("======今天晚饭吃什么？======\n");    printf("1. 山西刀削面\n");    printf("2. 兰州拉面\n");    printf("3. 西安羊肉泡馍\n");    printf("4. 烟台焖子\n");    printf("5. 西北风\n");    int c;    scanf("%d",&c);    switch(c)    {        case 1:printf("您书的对\n");break;        case 2:printf("您书的对对对\n");break;        case 3:printf("您书的对对对对都\n");break;        case 4:printf("您书的是对\n");break;        case 5:printf(" ur ringt\n");break;        default:printf("不对\n");break;    }    return 0;}

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