c++中下列问题用switch语句怎么编写

switch是一个开关语句，和case配套使用，和ifelse判断语句差不多，switch语句是用于多分支语句进行条件判断。下例为用switch语句编写的四则运算：#includevoidmain(){doubleN1,N2;charOperation;printf("输入运算的两个数");scanf("%lf%lf",&N1,N2);printf("请输入运算符（+，-，*，/）:");switch(Operation){case'+':printf("%lf%c%lf=%lf",N1,N2,Operation,N1+N2);break;case'-':printf("%lf%c%lf=%lf",N1,N2,Operation,N1-N2);break;case'*':printf("%lf%c%lf=%lf",N1,N2,Operation,N1*N2);break;case'/':printf("%lf%c%lf=%lf",N1,N2,Operation,N1/N2);break;}}

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{
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{
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break;
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