WebReturns the index of a specified character or substring in a string. The .IndexOf() method is a string method that returns the index of the first occurrence of a specified character or substring in a given string. If the character or substring is not found, it returns -1. WebThe String IndexOf() method returns the index of the first occurrence of the specified character/substring within the string. In this tutorial, we will learn about the C# String …
System.ArgumentOutOfRangeException: startIndex不能大于字符 …
WebJun 30, 2016 · List<> is a lot handier than DataTable, but if your table is huge you might be better off just using dt itself to avoid creating a near-duplicate data structure. It can index just like List<> after all. I say this having made the same mistake in the past and then running into huge data sets. WebFeb 8, 2024 · String.Substring . public string Substring(int startIndex, int length) 您正在尝试在第26个字符(StartIndex为零)之后服用35个字符,它超出了范围. 如果您只想从25个字符到字符串的末尾使用text.SubString(24) 其他推荐答案. 第二个参数string.Substring()是 length ,而不是内在: borg compressed steel corp
c#快速入门~在java基础上,知道C#和JAVA 的不同即可 - 一乐乐
WebMar 31, 2024 · Argument 1 The first argument to Substring is the start index. With index 3, we begin at the start of the fourth character "T." Argument 2 This is the length of the substring we want. We specify 3 to get a three-character substring. using System; string input = "OneTwoThree" ; // Take substring. string result = input. WebApr 11, 2024 · Detailed explanation of the String.Compare method's syntax and parameters: The syntax of the String.Compare method in C# is as follows: public static … WebIt is used to report the zero-based index of the first occurrence of the specified string in this instance. Insert(Int32, String) It is used to return a new string in which a specified string is inserted at a specified index position. Intern(String) It is used to retrieve the system's reference to the specified String. IsInterned(String) havasu therapeutic center