if后不加分号
#include
int main()
{
int a;
int b;
printf("请输入a:");
scanf("%d",&a);
printf("请输b:");
scanf("%d",&b);
if(a>b)
{
printf("a is bigger.\n");
}
if(a==b)
{
printf("a is equal to b.\n");
}
if(a{
printf("bisbiggerthana.\n");
}
return 0;
}
#include
int main()
{
int a;
int b;
printf("请输入a:");
scanf("%d",&a);
printf("请输b:");
scanf("%d",&b);
if(a>b)
{
printf("a is bigger.\n");
}
if(a==b)
{
printf("a is equal to b.\n");
}
if(a{
printf("b is bigger than a.\n");
}
return 0;
}
把第二个if改为else if,第三个if改为else,并且去除第二个if和第三个if之后的分号。