C语言之将弧度值转换为角度值

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

  #define pi 3.141592

  void  conver_radian(float  radian)
  {
      int degree,minute,second;
      float angle,min,sec;

     angle = radian *  / pi;
     degree = (int)angle;

     min = (angle - degree)*;
     minute = (int)min;

     sec = (min - minute)*;
     second = (int) (sec + 0.5);  //四舍五入

     printf("%f弧度等于%d度 %d分 %d秒\n",radian,degree,minute,second);
 }

 void main()
 {
     //将弧度值转换为角度值
     float radian;

     printf("请输入弧度值：");
     scanf("%f",&radian);

     conver_radian(radian);

     system("pause");
     return ;
 }