c语言简单加减乘除运算

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1、/////////////////////////////////////简单运算加减乘除（C语言）//运行环境VC6.0//作者：summer////////////////////////////////////#include#include#includeintk;EXIT(){exit(0);}voidlist_menu1(){printf("------------------------");printf("<***1.加法运算**

2、*>");printf("<***2.减法运算***>");printf("<***3.乘法运算***>");printf("<***4.除法运算***>");printf("<***5.退出***>");printf("------------------------");}voidlist_menu2(){printf("*************************");printf("***1.0-9运算***");printf("***2.0-99运算***

3、");printf("*************************");}/*生成随机数*/intnum0_9(){return(rand()%10);}intnum0_99(){return(rand()%100);}/*加法运算*/voidadd1(){intx,y,sum;inti;intcount=0;for(i=1;i<=k;i++){x=num0_9();y=num0_9();printf("%d+%d=",x,y);scanf("%d",&sum);if(sum==x+y){

4、printf("Ture!");count++;}elseprintf("error!正确答案是:%d",x+y);}printf("corretrateis%.2f",count/(k*1.0));if(count/(k*1.0)>0.9)printf("verygood!");elseprintf("还要继续训练才行啊!");}voidadd2(){intx,y,sum;inti;intcount=0;for(i=1;i<=k;i++){x=num0_99();y=num0_99

5、();printf("%d+%d=",x,y);scanf("%d",&sum);if(sum==x+y){printf("Ture!");count++;}elseprintf("error!正确答案是:%d",x+y);}printf("corretrateis%.2f",count/(k*1.0));if(count/(k*1.0)>0.9)printf("verygood!");elseprintf("还要继续训练才行啊!");}/*减法运算*/voidsub1(){intx

6、,y,sum;inti;intcount=0;for(i=1;i<=k;i++){x=num0_9();y=num0_9();printf("%d-%d=",x,y);scanf("%d",&sum);if(sum==x-y){printf("ture!");count++;}elseprintf("error!正确答案是:%d",x-y);}printf("corretrateis%.2f",count/(k*1.0));if(count/(k*1.0)>0.9)printf("veryg

7、ood!");elseprintf("还要继续训练才行啊!");}voidsub2(){intx,y,sum;inti;intcount=0;for(i=1;i<=k;i++){x=num0_99();y=num0_99();printf("%d-%d=",x,y);scanf("%d",&sum);if(sum==x-y){printf("ture!");count++;}elseprintf("error!正确答案是:%d",x-y);}printf("corretrateis%.2

8、f",count/(k*1.0));if(count/(k*1.0)>0.9)printf("verygood!");elseprintf("还要继续训练才行啊!");}/*乘法运算*/voidmul1(){intx,y,sum;inti;intcount=0;for(i=1;i<=k;i++){x=num0_9();y=num0_9();printf("%d*%d=",x,y);scanf("%d",&sum);if(sum=