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/// <summary>
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/// 截取字符串,不限制字符串长度
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/// </summary>
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/// <param name="str">待截取的字符串</param>
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/// <param name="len">每行的长度,多于这个长度自动换行</param>
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/// <returns></returns>
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public string CutStr(string str,int len)
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{ string s="";
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for(int i=0;i<str.Length ;i++)
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{
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int r= i% len;
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int last =(str.Length/len)*len;
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if (i!=0 && i<=last)
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{
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if( r==0)
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{
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s+=str.Substring(i-len,len)+"<br>";
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}
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}
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else if (i>last)
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{
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s+=str.Substring(i-1) ;
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break;
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}
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}
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return s;
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}
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35![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
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/// <summary>
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/// 截取字符串并限制字符串长度,多于给定的长度+。。。
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/// </summary>
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/// <param name="str">待截取的字符串</param>
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/// <param name="len">每行的长度,多于这个长度自动换行</param>
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/// <param name="max">输出字符串最大的长度</param>
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/// <returns></returns>
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public string CutStr(string str,int len,int max)
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{
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string s="";
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string sheng="";
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if (str.Length >max)
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{
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str=str.Substring(0,max) ;
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sheng="
";
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}
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for(int i=0;i<str.Length ;i++)
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{
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int r= i% len;
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int last =(str.Length/len)*len;
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if (i!=0 && i<=last)
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{
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if( r==0)
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{
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s+=str.Substring(i-len,len)+"<br>";
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}
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}
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else if (i>last)
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{
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s+=str.Substring(i-1) ;
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break;
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}
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}
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return s+sheng;
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}
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