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C#中string用法
2022-07-07 23:12:00 【有诗亦有远方】
string.Join
1.string.join
在指定 String 数组的每个元素之间串联指定的分隔符 String,从而产生单个串联的字符串。例如:
string [] array={
abc,def,ghi};
string a = string.Join("-", array);
此时a=“abc-def-ghi”;
2.string.IsNullOrWhiteSpace
判断所有空白字符,功能相当于string.IsNullOrEmpty和str.Trim().Length总和,他将字符串给Char.IsWhiteSpace为ture的任何字符都将是正确的。根据MSDN的说明,这个方法会比调用上述两个方法的性能更高而且简洁,所以在判断这个功能时,推荐使用。
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