modf 函数 介绍

函数名:modf

功 能: 把数分为整数和小数

 

举例说明：

 

 

#include <math.h> #include <stdio.h> int main(void) { double fraction, integer; double number = 100000.567; fraction = modf(number, &integer); printf("The whole and fractional parts of %lf are %lf and %lf\n", number, integer, fraction); return 0; }

结果是：

The whole and fractional parts of 100000.567000 are 100000.000000 and 0.567000

怎么样，明白了吧