C # code commonly used techniques

Others 2019-10-16 16:54:31 views: null

1, when the fight sql statement, list elements in single quotes and separated by commas: string.Join ( ",", list.Select (r => " '" + r + "'"))

2, string str = " '" + r + "',"; list.Trim ( ","); // TrimEnd ( ',') to remove the last comma

3、string[] arr=str.split(','); string[] arrTest = arr.Distinct().ToArray();

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