Question

eror:lvalue required as left operand of assignment，

#include <stdio.h>
int main()
{
int a,b,ho,mi;
scanf("%d %d",&a,&b);
if (a%100+b>=0)
{
ho=a/100+(a%100+b)/60,mi=(a%100+b)%60;
}
else
{
if (a%100+b>=(-60))
{
ho=a/100-1,mi=(a%100+b)+60;
}
else
{
if ((a%100+b)%60=0)//这里说eror:lvalue required as left operand of assignment

{
ho=a/100-1+(a%100+b)/60,mi=(a%100+b)%60;
}
else
{
ho=a/100-1+(a%100+b)/60,mi=(a%100+b)%60+60;
}
}
printf("%01d:%02d\n",ho,mi);
}
}

Answer 1

判断是 == 不是= =是赋值， 然后前面的a%100+b>=0 我不知道+ 和判断 >=的优先级，但是觉得你最好加括号，if((a%100+b)>=0)

追问

　　else
{
if ((a%100+b)%60=0)//这里说eror:lvalue required as left operand of assignment 怎么弄啊

追答

改成 if ((a%100+b)%60==0)