垃圾代码1
#include <stdio.h>float calc(float x,char op,float y);int main() { float num1=0,num2=0,num3=0,temp=0; char op[2][2]={0}; printf("Input expression:" ); scanf("%f",&num1); scanf("%c",&op[0][0]); scanf("%f",&num2); scanf("%c",&op[0][1]); scanf("%f",&num3); if(op[0][0]=='+'||op...