#include?“stdio.h“
#define?PI?3.14159
void?circle（）
{
	float?rarea;	
	printf（“本程序計(jì)算圓的面積，請(qǐng)輸入圓的半徑\n“）;
	scanf（“%f“&r）;
	area=PI*r*r;
	printf（“半徑為%.3f的圓面積為：%.3f\n“rarea）;
	printf（“半徑為?%f的園面積為%f\n：“rarea）;
	scanf（“%f“&r）;
}



void?main（）
{
	
	circle（）;
	

}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件???????????0??2010-03-04?15:56??.exe.res
?????文件???????????0??2010-03-04?15:56??.res
?????目錄???????????0??2016-01-11?11:16??Debug\
?????文件??????180285??2010-03-15?14:47??Debug\c1.exe
?????文件??????189780??2010-03-15?14:47??Debug\c1.ilk
?????文件????????8995??2010-03-15?14:47??Debug\c1.obj
?????文件??????175528??2010-03-15?14:47??Debug\c1.pch
?????文件??????467968??2010-03-15?14:47??Debug\c1.pdb
?????文件???????33792??2010-03-15?14:48??Debug\vc60.idb
?????文件???????53248??2010-03-15?14:47??Debug\vc60.pdb
?????文件???????41465??2018-12-19?20:22??a.exe
?????文件?????????319??2018-12-19?20:22??c1.c
?????文件???????????0??2010-03-04?14:47??c1.cpp
?????文件????????4234??2010-03-04?14:51??c1.dsp
?????文件?????????529??2010-03-04?14:46??c1.dsw
?????文件???????41984??2010-03-15?15:13??c1.ncb
?????文件???????53760??2010-03-15?15:13??c1.opt
?????文件????????1359??2010-03-15?14:47??c1.plg