/// <summary> /// 手机号缩略显示 /// </summary> /// <param name="str">手机号</param> /// <param name="startIndex">从第几位开始隐藏</param> /// <param name="count">隐藏几位</param> /// <param name="ArrSize">用几个*代替</param> /// <returns></returns> public static string Str_Replace(string str, int startIndex, int count, int ArrSize) { try { string[] Arr = new string[ArrSize]; for (int i = 0; i < ArrSize; i++) Arr[i] = "*"; string str2 = str.Remove(startIndex, count); string str3 = str2.Insert(startIndex, string.Join("", Arr)); return str3; } catch { return str; } }
知识点：string.join()：将数组转化成字符串
https://www.cnblogs.com/multiplesoftware/archive/2011/09/17/2179380.html
转载于:https://www.cnblogs.com/su-su-0107/p/7873531.html
