C截取定長字符串函數(shù)

第第頁C截取定長字符串函數(shù)C#截取定長字符串函數(shù)

///summary

///

////summary

///paramname=str-/param

///paramname=length/param

///returnsstring/returns

publicstaticstringCutStr(stringstr,intlength)

{

inti=0,j=0;

foreach(charchrinstr)

{

if((int)chr127)

{

i+=2;

}

else

{

i++;

}

if(ilength)

{

str=str.Substring(0,j)+...;

break;

}

j++;

}

returnstr;

}

//

publicstringCutStr(stringsInString,intiCutLength)

{

if(sInString==null||sInString.Length==0||iCutLength=0){

return;

}

int

iCount=System.Te*t.Encoding.GetEncoding(Shift_JIS).GetByteCount(sInString);

if(iCountiCutLength)

{

intiLength=0;

C#截取定長字符串函數(shù)

for(inti=0;isInString.Length;i++)

{

int

iCharLength=System.Te*t.Encoding.GetEncoding(Shift_JIS).GetByteCount(newchar[]{sInString[i]});

iLength+=iCharLength;

if(iLength==iCutLength)

{

sInString=sInString.Substring(0,i+1);

break;

}

elseif(iLengthiCutLength)

{

sInString=sInString.Substring(0,i);

break;

}

}

}

returnsInString;

}

//

publicstaticstringCutStr(stringstringToSub,intlength){

Rege*rege*=newRege*([\u4e00-\u9fa5]+,piled);

char[]stringChar=stringToSub.ToCharArray();

StringBuildersb=newStringBuilder();

intnLength=0;

for(inti=0;istringChar.Length;i++)

{

if(rege*.IsMatch((stringChar[i]).ToString())){

nLength+=2;

}

else

{

nLength=nLength+1;

}

if(nLength=length)

{

sb.Append(stringChar[i]);

}

C#截取定長字符串函數(shù)

else

{

break;

}

}

if(sb.ToString()!=stringToSub)

{

sb.Append(...);

}

returnsb.ToString();

}

//

///summary

///C#

////summary

///paramname=string1-/param

///paramname=Len1-/param

///returnsReCutStr/returns

publicstaticstringCutStr(stringstring1,intLen1){

stringReCutstr=string.Empty;

boolRemark=false;//

intn=string1.Length;

intTrueLen=0;

intPcount=0;//

intGcount=0;//

intLcount=0;//

char[]bytes=string1.ToCharArray();

foreach(charchrAinbytes)

{

if(Convert.ToInt32(chrA)=0Convert.ToInt32(chrA)=255)

{

Pcount=Pcount+1;

}

else//

{

Gcount=Gcount+1;

}

Lcount=(Pcount/2)+Gcount;

C#截取定長字符串函數(shù)

TrueLen=Pcount+Gcount;

if(LcountLen1)//

{

ReCutstr=string1.Substring(0,TrueLen)+...;Remark=true;

break;

}

}

if(!Remark)//

{

ReCutstr=string1;

}

returnReCutstr;

}

//

publicstaticstringCutStr(stringinput,intcount)

{

inttempcount=count;

if(input==null)

{

returnstring.Empty;

}

if(input.Lengthcount)

{

try

{

intlencount=0;

int.TryParse(ContainsNumeral(input,

count).ToString(),outlncount);

count=lencount+count;

if(input.Lengthcount)

{

returninput.Substring(0,count)+...;}

else

{

returninput;

}

}

C#截取定長字符串函數(shù)

catch

{

returninput.Substring(0,tempcount)+...;}

}

returninput;

}

///summary

///

////summary

///paramname=input/param

///paramname=count/param

///returns/returns

publicstaticdoubleContainsNumeral(stringinput,intcount){

stringlinput=input.Substring(0,count);

doublelcount=0;

inti=0;

//1.

for(intk=0;k10;k++)

{

if(linput.Contains(k.ToString()))

{

lcount+=0.5;

i++;

}

}

////2.

//for(intj=0;jlinput.Length;j++)

//{

//for(intk=0;k10;k++)

//{

//

1).Contains(k.ToString()))

//{

//lcount+=0.5;

//i++;

//break;

//}

//}

//}

if(linput.Substring(j,

C#截取定長字符串函數(shù)

if(i%2!=0){

lcount+=0.5;}returnlcount;}

C#截取定長字符串函數(shù)

///summary

///

////summary

///paramname=str-/param

///paramname=length/param

///returnsstring/returns

publicstaticstringCutStr(stringstr,intlength)

{

inti=0,j=0;

foreach(charchrinstr)

{

if((int)chr127)

{

i+=2;

}

else

{

i++;

}

if(ilength)

{

str=str.Substring(0,j)+...;

break;

}

j++;

}

returnstr;

}

//

publicstringCutStr(stringsInString,intiCutLength)