编辑代码

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main () 
{
    int num1,num2,answer;
    srand(time(NULL));
    num1 = rand()%100;
    num2 = rand()%100;
    printf("%d+%d=",num1,num2);
    scanf("%d",&answer);
    if (answer = num1+num2)
    {
        printf("真棒，回答正确。\n");
    }
    else
    {
        printf("很遗憾，回答错误。\n");
    }
    return 0;
}