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不简单!!
上图
代码不是很多!!看了Base64加密规则后自己打的!!求支持
代码在下面<P><FONT color=green>[hide] </P>
<BLOCKQUOTE>
<P><FONT color=green>#include "stdio.h"
#include "windows.h"
/*
By:迷 雾 少 年
QQ:1462063314
*/
int Base_(char *szSting);
int AsciiToB(char p )
{
int i = 0;</FONT></P>
<P><FONT color=green> if(p>=0 && p<=25)
i = 65 + p;
if(p>=26 && p<=51)
i = 71 + p;
if(p>=52 && p<=61)
i = p - 4;</FONT></P>
<P><FONT color=green> if(p==62) i = '+';
if(p==63) i = '/';
return i;
}</FONT></P>
<P><FONT color=green>//把3个字符转为Base64格式的字符
int Base64(char *_Char,char *Resu)
{
int _Data = 0;
int _Int_[4]={0};
//_Data = 5533549;
_Data = Base_(_Char);
//_Data =7929856;
Resu[3] = _Data & 0x3F;
// 0xFC0
Resu[2] = (_Data & 0XFC0) >> 6;
// 0x3F000
Resu[1] = (_Data & 0x3F000) >> 12;
// FC0000
Resu[0] = (_Data & 0xFC0000) >> 18;
//Resu[0] = (_Data & 0x3F000000) >> 24;
/*查表咯*/
Resu[0] = AsciiToB(Resu[0]);
Resu[1] = AsciiToB(Resu[1]);
Resu[2] = AsciiToB(Resu[2]);
Resu[3] = AsciiToB(Resu[3]);
return 0;
}
int Base_(char *szSting,int _twp)
{
int i = 0;
char *p = (char*)&i;
*p = szSting[2];
p++;
*p = szSting[1];
p++;
*p = szSting[0];
p++;
*p = szSting[0];
return i;
}
int _Base_(char *In,char *_Out)
{
char Res[5]={0};
int i = 0;
int iz;
char Out[5]={0};
char out[250]={0};
int lenth = strlen(In);
for (i = 0; i < lenth;)
{
lstrcpynA(Res,In + i,4);
Res[4]=0;
Base64(Res,Out);
lstrcatA(out,Out);
i=i+3;
//还剩余1字节
if(lenth-i == 2)
{
iz = 1;
}
if(lenth-i == 1)
{
iz = 2;
}
}
//把A都替换为=
lenth = strlen(out) - 1;
for (i=0; i < iz; i++)
{
out[lenth-i] = '=';
}
lstrcpyA(_Out,out);
return 0;
}
int main()
{
char sz_Out_String[200]={0};
char out[280]={0};
printf("请输入要转换的字符C:");
scanf("%s",sz_Out_String);
_Base_(sz_Out_String,out);
printf("\n转换结果%s\n",out);
return 0;
}</FONT></P>
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