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