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C语言绝对值函数如何调用

小亿
146
2024-02-05 17:45:25
栏目: 编程语言
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C语言中的绝对值函数是abs(),它可以用于计算整数、浮点数或长整数的绝对值。调用abs()函数只需在括号内输入需要取绝对值的值即可。

示例代码如下:

#include <stdio.h>
#include <stdlib.h>

int main() {
    int num = -10;
    int absNum = abs(num);
    printf("The absolute value of %d is %d\n", num, absNum);

    float fnum = -3.14;
    float absFnum = abs(fnum);
    printf("The absolute value of %.2f is %.2f\n", fnum, absFnum);

    long long llnum = -1234567890;
    long long absLLnum = abs(llnum);
    printf("The absolute value of %lld is %lld\n", llnum, absLLnum);

    return 0;
}

输出结果:

The absolute value of -10 is 10
The absolute value of -3.14 is 3.14
The absolute value of -1234567890 is 1234567890

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