C# 数组 集合 字符串之间的相互转换

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字符串转为数组 string str = "1,2,3,4";   string[] strArr = str.Split(',');        数组转为字符串 string[] scoresArr = { "1", "2", "3", "4", "5" }; string scores = string.Join(",", scoresArr);        字符串转为集合 string str = "a,b,c";   List<string> strList = str.Split(',').ToList();        集合转为字符串 List<string> abcList = new List<string> { "a", "b", "c", "d" }; string str = string.Join(",", abcList);