switch语句实现简单计算器运算

#include <stdio.h> int main() { float a=0,b=0,z; char m; printf("a= ,b=\n"); scanf("%f %f",&a,&b); printf("[Calculator + - * /]:"); getchar(); scanf("%c",&m); switch(m) { case'+': z=a+b; printf("a+b=%

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