从字符串中删除最后三个字符 [英] Remove the last three characters from a string

问题描述

我想最后三个字符从字符串中删除：

 字符串的myString =abcdxxx; 
  

请注意该字符串是动态的数据。

解决方案

阅读最后从字符串3字符[最初问的问题]

您可以使用 string.Substring 并给它的起始索引，它会得到从子给定索引到年底开始。

  myString.Substring（str.Length-3）
  

检索从这个实例中的子字符串。该子开始在
指定字符位置。 MSDN

修改，更新的职位

删除最后3个字符从string [更新问题]

要删除字符串可以使用的string.Substring(Int32，Int32）将并给它的起始索引 0 和结束索引的三少那么字符串长度的。它会得到最后三个字符前的子字符串。

 的myString = myString.Substring（0，str.Length-3）; 
  

的 String.Substring方法（Int32，Int32）将

检索子从这个实例。该子开始在
指定字符位置，并有指定的长度。

您还可以使用的String.Remove(Int32）方法通过传递开始索引，以消除最后三个字符的长度 - 3 的，它会从这个角度删除结束串

 的myString = myString的。删除（myString.Length-3）
  

的 String.Remove方法（Int32）

返回这在目前的
实例中的所有角色，开始在指定的位置，并通过
继续最后一个位置，已被删除一个新字符串

I want to remove last three characters from a string:

string myString = "abcdxxx"; 

Note that the string is dynamic data.

解决方案

read last 3 characters from string [Initially asked question]

You can use string.Substring and give it the starting index and it will get the substring starting from given index till end.

myString.Substring(str.Length-3)

Retrieves a substring from this instance. The substring starts at a specified character position. MSDN

Edit, for updated post

Remove last 3 characters from string [Updated question]

To remove last three characters from string you can use string.Substring(Int32, Int32) and give it the starting index 0 and end index three less then the string length. It will get the substring before last three characters.

myString = myString.Substring(0, str.Length-3);

String.Substring Method (Int32, Int32)

Retrieves a substring from this instance. The substring starts at a specified character position and has a specified length.

You can also using String.Remove(Int32) method to remove the last three characters by passing start index as length - 3, it will remove from this point to end of string.

myString = myString.Remove(myString.Length-3)

String.Remove Method (Int32)

Returns a new string in which all the characters in the current instance, beginning at a specified position and continuing through the last position, have been deleted

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