找出三个数中最大的数. C

#c #寻找

使用 if 语句

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#include <stdio.h>
int main() {
    double n1, n2, n3;
    printf("Enter three different numbers: ");
    scanf("%lf %lf %lf", &n1, &n2, &n3);
​
    if (n1 >= n2 && n1 >= n3)
        printf("%.2f is the largest number.", n1);
​
    if (n2 >= n1 && n2 >= n3)
        printf("%.2f is the largest number.", n2);
​
    if (n3 >= n1 && n3 >= n2)
        printf("%.2f is the largest number.", n3);
​
    return 0;
}

使用 if...else 阶梯

xxxxxxxxxx
 
#include <stdio.h>
int main() {
    double n1, n2, n3;
    printf("Enter three numbers: ");
    scanf("%lf %lf %lf", &n1, &n2, &n3);
​
    if (n1 >= n2 && n1 >= n3)
        printf("%.2lf is the largest number.", n1);
​
    else if (n2 >= n1 && n2 >= n3)
        printf("%.2lf is the largest number.", n2);
​
    else
        printf("%.2lf is the largest number.", n3);
​
    return 0;
}

使用嵌套 if...else

xxxxxxxxxx
 
#include <stdio.h>
int main() {
    double n1, n2, n3;
    printf("Enter three numbers: ");
    scanf("%lf %lf %lf", &n1, &n2, &n3);
​
    if (n1 >= n2) {
        if (n1 >= n3)
            printf("%.2lf is the largest number.", n1);
        else
            printf("%.2lf is the largest number.", n3);
    } else {
        if (n2 >= n3)
            printf("%.2lf is the largest number.", n2);
        else
            printf("%.2lf is the largest number.", n3);
    }
​
    return 0;
}

Output result

Enter three numbers: -4.5
3.9
5.6
5.60 is the largest number.

C

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找出三个数中最大的数. C

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