雙引號(hào)是定義字符串的,如
string s1 = "abcdefg";
string[] ss = new string[]{"ab","cd","ef"};
單引號(hào)是定義單個(gè)字符的,如
char ch = 'a';
char[] chs = new char[]{'a','b','c'};
另外split 函數(shù)中用到的是char,即單引號(hào)的,而非雙引號(hào)的.