在visul studio 2010和2008里面运行如下c++程序：
#include <iostream>
using namespace std;
int main()
{
int a, b, c;
int f(int x, int y, int z);
cin>>a>>b>>c;
c=f(a,b,c);
cout<<c<<endl;
return 0;
}
int f(int x, int y, int z)
{
int m;
if(x<y) m=x;
else m=y;
if(z<m) m=z;
return m;
}
会出现如下内容且窗口自动退出：
'521.exe': Loaded 'D:\Program Files\521\Debug\521.exe', Symbols loaded.
'521.exe': Loaded 'C:\Windows\System32\ntdll.dll', Cannot find or open the PDB file
'521.exe': Loaded 'C:\Windows\System32\kernel32.dll', Cannot find or open the PDB file
'521.exe': Loaded 'C:\Windows\System32\KernelBase.dll', Cannot find or open the PDB file
'521.exe': Loaded 'C:\Windows\System32\msvcp100d.dll', Symbols loaded.
'521.exe': Loaded 'C:\Windows\System32\msvcr100d.dll', Symbols loaded.
The program '[5960] 521.exe: Native' has exited with code 0 (0x0).
需要加 system（“pause”）
原因：system( "pause ")就是表示接收一个输入，比如显示的 按任意键继续...
修改后程序为：
#include <iostream>
using namespace std;
int main()
{
int a, b, c;
int f(int x, int y, int z);
cin>>a>>b>>c;
c=f(a,b,c);
cout<<c<<endl;
system("pause");
return 0;
}
int f(int x, int y, int z)
{
int m;
if(x<y) m=x;
else m=y;
if(z<m) m=z;
return m;
}