<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[shengchang82的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/shengchang82</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; shengchang82]]></copyright><item><title><![CDATA[常用函数]]></title><link>https://blog.youkuaiyun.com/shengchang82/article/details/4682193</link><guid>https://blog.youkuaiyun.com/shengchang82/article/details/4682193</guid><author>shengchang82</author><pubDate>Fri, 16 Oct 2009 16:50:00 +0800</pubDate><description><![CDATA[判断一个字符串是否全是数字public static bool IsNum(String str){  for(int i=0;i<str.Length;i++)  {    if(!Char.IsNumber(str,i))      return false;  }  return true;} ]]></description><category></category></item><item><title><![CDATA[C# 字符串格式化]]></title><link>https://blog.youkuaiyun.com/shengchang82/article/details/4682112</link><guid>https://blog.youkuaiyun.com/shengchang82/article/details/4682112</guid><author>shengchang82</author><pubDate>Fri, 16 Oct 2009 16:46:00 +0800</pubDate><description><![CDATA[1、格式化货币（跟系统的环境有关，中文系统默认格式化人民币，英文系统格式化美元）string.Format("{0:C}",0.2) 结果为：￥0.20 （英文操作系统结果：$0.20）默认格式化小数点后面保留两位小数，如果需要保留一位或者更多，可以指定位数string.Format("{0:C1}",23.15) 结果为：￥23.2 （截取会自动四舍五入）格式化多个Object实例s]]></description><category></category></item></channel></rss>