主要实现了以下的函数
代码中出现的sidle是我的网名。
/**//*
*@authorwuerping
*@version1.0
*@date2004/11/30
*@description:
*/
usingsystem;
usingsystem.text;
namespacesidlehelper
{
/**////<summary>
///summarydescriptionforstrhelper.
///命名缩写：
///str:unicodestring
///arr:unicodearray
///hex:二进制数据
///hexbin:二进制数据用ascii字符表示例字符1的hex是0x31表示为hexbin是31
///asc:ascii
///uni:unicode
///</summary>
publicsealedclassstrhelper
{
hex与hexbin的转换#regionhex与hexbin的转换
publicstaticvoidhexbin2hex(byte[]bhexbin,byte[]bhex,intnlen)
{
for(inti=0;i<nlen/2;i++)
{
if(bhexbin[2*i]<0x41)
{
bhex[i]=convert.tobyte(((bhexbin[2*i]-0x30)<<4)&0xf0);
}
else
{
bhex[i]=convert.tobyte(((bhexbin[2*i]-0x37)<<4)&0xf0);
}
if(bhexbin[2*i+1]<0x41)
{
bhex[i]|=convert.tobyte((bhexbin[2*i+1]-0x30)&0x0f);
}
else
{
bhex[i]|=convert.tobyte((bhexbin[2*i+1]-0x37)&0x0f);
}
}
}
publicstaticbyte[]hexbin2hex(byte[]bhexbin,intnlen)
{
if(nlen%2!=0)
returnnull;
byte[]bhex=newbyte[nlen/2];
hexbin2hex(bhexbin,bhex,nlen);
returnbhex;
}
publicstaticvoidhex2hexbin(byte[]bhex,byte[]bhexbin,intnlen)
{
bytec;
for(inti=0;i<nlen;i++)
{
c=convert.tobyte((bhex[i]>>4)&0x0f);
if(c<0x0a)
{
bhexbin[2*i]=convert.tobyte(c+0x30);
}
else
{
bhexbin[2*i]=convert.tobyte(c+0x37);
}
c=convert.tobyte(bhex[i]&0x0f);
if(c<0x0a)
{
bhexbin[2*i+1]=convert.tobyte(c+0x30);
}
else
{
bhexbin[2*i+1]=convert.tobyte(c+0x37);
}
}
}
publicstaticbyte[]hex2hexbin(byte[]bhex,intnlen)
{
byte[]bhexbin=newbyte[nlen*2];
hex2hexbin(bhex,bhexbin,nlen);
returnbhexbin;
}
#endregion
数组和字符串之间的转化#region数组和字符串之间的转化
publicstaticbyte[]str2arr(strings)
{
return(newunicodeencoding()).getbytes(s);
}
publicstaticstringarr2str(byte[]buffer)
{
return(newunicodeencoding()).getstring(buffer,0,buffer.length);
}
publicstaticbyte[]str2ascarr(strings)
{
returnsystem.text.unicodeencoding.convert(system.text.encoding.unicode,
system.text.encoding.ascii,
str2arr(s));
}
publicstaticbyte[]str2hexascarr(strings)
{
byte[]hex=str2ascarr(s);
byte[]hexbin=hex2hexbin(hex,hex.length);
returnhexbin;
}
publicstaticstringascarr2str(byte[]b)
{
returnsystem.text.unicodeencoding.unicode.getstring(
system.text.asciiencoding.convert(system.text.encoding.ascii,
system.text.encoding.unicode,
b)
);
}
publicstaticstringhexascarr2str(byte[]buffer)
{
byte[]b=hex2hexbin(buffer,buffer.length);
returnascarr2str(b);
}
#endregion
}
}