#region 文字换行
/// <summary>
/// 文字换行
/// <para>eg:stringhelper.wraptext("yanzhiwei", 3);==>"yan\r\nzhi\r\nwei"</para>
/// </summary>
/// <param name="data">需要换行的文字</param>
/// <param name="maxwidth">多少长度换行</param>
/// <returns>换行好的文字</returns>
public static string wraptext(this string data, int maxwidth)
{
int _stringcount = data.length;
if (maxwidth > 0 && _stringcount > maxwidth)
{
stringbuilder _builderstring = new stringbuilder(data);
int _breakcount = _builderstring.length / maxwidth;
for (int i = 0; i < _breakcount; i++)
{
int _insertposition = i * maxwidth;
if (_insertposition != 0)
{
int _offset = (i - 1) * 2;//(\r\n)
_builderstring.insert(_insertposition + _offset, environment.newline);
}
}
return _builderstring.tostring();
}
else
{
return data;
}
}
#endregion
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