Aces's questions

这是一个例子。

#include <stdio.h>

int main(void){
    int score1 = 70, score2 = 58, score3 = 99;

    float total = 3;
    printf("Average: %f\n", (score1 + score2 + score3)/total);
}

它给了我75.666664。而如果我像这样的代码那样将 Total 替换为 3.0

#include <stdio.h>

int main(void){
    int score1 = 70, score2 = 58, score3 = 99;
    printf("Average: %f\n", (score1 + score2 + score3)/3.0);
}

它给了我75.666667.