u7_6_1.cpp

《C++ Builder 5程序设计——基础教学篇》程序源代码2.

//--------------  u7_6_1  ----------------------------------------------------
#include<math.h>
#include <vcl.h>
#pragma hdrstop

#include "u7_6_1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
Tf7_6_1 *f7_6_1;
//---------------------------------------------------------------------------
__fastcall Tf7_6_1::Tf7_6_1(TComponent* Owner)
    : TForm(Owner)
{
}
//-------------------------------------------------------------------

void __fastcall Tf7_6_1::btnDrawClick(TObject *Sender)
{
  const float PI = 3.14159;
  int man_num,woman_num,total_num,man_r;
  float ang1,ang2;
  float x0,y0,x1,y1,x2,y2,r;
  man_num=StrToInt(edtMan->Text);
  woman_num=StrToInt(edtWoman->Text);
  total_num=man_num+woman_num;
  Refresh();
  if (total_num >0)
  {
    man_r=100*man_num/total_num;
    lblManR->Caption="╧:"+IntToStr(man_r)+"%";
    lblWomanR->Caption="