var str= ",2,3,4,6,7,"; var str2 = str.Trim(new char[] { ',' }); //去除字符串str两端的','字符。 //则str2 为:"2,3,4,6,7" 相关文章: 2022-12-23 2021-07-03 2022-02-19 2022-12-23 2022-01-17 2021-12-07 2021-12-08 2022-12-23