static void Main(string[] args) { //截取字符串 string str1 = "ABCDEFGHIJKLMN"; string str2 = str1.Substring(0, 4);//从0位开始截取,共截取4位; Console.WriteLine(str2); Console.WriteLine(str2.Substring(0, 2)); Console.ReadKey(); //分割字符串 string strA = "AI时代已经到来,请做好准备;"; char[] separator = { ',' }; //分割字符,数据类型必须是字符类型数组; string[] strB = new string[100]; strB = strA.Split(separator); for (int i = 0; i < strB.Length; i++) { Console.WriteLine(strB[i]); } Console.ReadLine(); //插入字符串 string strC = "a12345"; string strD = strC.Insert(1, "999"); Console.WriteLine(strD); Console.ReadKey(); //填充字符串(左填充和右填充) string strE = "sdf"; string strF = strE.PadLeft(5, 'A'); string strG = strF.PadRight(7, 'A'); Console.WriteLine(strF); Console.WriteLine(strG); Console.ReadLine(); //删除字符串 string strH = "sdfsag"; string strI = strH.Remove(1, 2); Console.WriteLine(strI); Console.ReadKey(); //复制字符串Copy()和CopyTo() string str11 = "123"; char[] char1 = new char[100]; string str22 = string.Copy(str11); str11.CopyTo(0, char1, 0, 3);//待复制字符起始位置,目标字符数组,目标数组起始存放位置,数量; Console.WriteLine(str22); for (int i = 0; i < str11.Length; i++) { Console.WriteLine(char1[i]); } Console.ReadLine(); //替换字符串 string str33 = "abcabc"; string str55 = str33.Replace('a', 'd');//字符'd'替换字符'a' string str66 = str33.Replace("abc", "def");//字符串"def"替换字符串"abc"; Console.WriteLine(str55); Console.WriteLine(str66); Console.ReadLine(); }
标签:字符,Console,string,WriteLine,字符串,操作,ReadLine From: https://www.cnblogs.com/csflyw/p/18365840