C语言 简单密码生成算法

[code] #include <iostream>
#include <algorithm>
#include <string>
#include <memory>
#include <cctype>
#include <tchar.h>  // _TCHAR* argv[]
#include <wtypes.h>
#include <fstream>
using namespace std;

char sp[9];
void skimrand()
{
for (int s=0;s<100;s++)
rand();
cout<<endl<<"skim 100 rand nums..."<<endl;

}
void genTo(int count, int sn )
{        ofstream fout("key.txt",ios::app);

sn=sn/4;
for (int k=0;k<count;++k)
{
for (int m1=0;m1<sn;++m1)
{int temp=(rand()%26)+65;
cout<<(char)temp;        fout<<(char)temp;
}
cout<<"-";        fout<<"-";
for (int m1=0;m1<sn;++m1)
{int temp=rand()%10;
cout<<temp;        fout<<temp;
}
cout<<"-";        fout<<"-";
for (int m1=0;m1<sn;++m1)
{int temp=(rand()%26)+97;
cout<<(char)temp;        fout<<(char)temp;
}
cout<<"-";        fout<<"-";
for (int m1=0;m1<sn;++m1)
{        sp[0]=(char)(rand()%26 +65);        sp[1]=(char)(rand()%26 +97);
int temp=rand()%9;
cout<<sp[temp];                fout<<sp[temp];
}
cout<<endl;        fout<<endl;

}
fout.close();
}

int _tmain(int argc, _TCHAR* argv[])
{
char tcmd;

sp[2]='@'; sp[3]='#'; sp[4]='$'; sp[5]='%'; sp[6]='^'; sp[7]='&'; sp[8]='*';

while (cin>>tcmd)
{
switch (tcmd)
{
case 'g': genTo(10,12); break;
case 't': genTo(20,12); break;
case 'p': genTo(50,12); break;

case 'G': genTo(10,16); break;
case 'T': genTo(20,16); break;
case 'P': genTo(50,16); break;

case 'q': return 0;
case 's' : skimrand(); break;
default: skimrand(); break;

}
}

return 0;
}