exp_out.c

来自「本代码是《C／C++程序员实用大全》的配套代码。网络转载」· C语言 代码 · 共 12 行

#include <stdio.h>

void main(void)
 {
   float pi = 3.14159;
   float radius = 2.0031;

   printf("The circle's area is %e\n", 2 * pi * radius);
   printf("The circle's area is %E\n", 2 * pi * radius);
 }