获取字符串变量的最后一个值 [英] get last value of string variable

问题描述

我定义string [] name = new string [100];

当我填写此变量时，我现在不知道如何访问最后一个值???它已更改，有时78有时50，有时60，...

我怎么能得到最后一个值???

解决方案

访问这里...





http://stackoverflow.com/questions/7387396/get-the-first-and-last-item-of-an-array-of-strings [< a href =http://stackoverflow.com/questions/7387396/get-the-first-and-last-item-of-an-array-of-stringstarget =_ blanktitle =New Window> ^ ]



或

>

也许会这样：

  public   int  LastNonEmptyIndex（ string  [] array）
 {
  int  i = array.Length  -   1 ; 
  do  {
  if （！string.IsNullOrEmpty（array [i]） ）{
  break ; 
} 
}  while （ -  i >  -1）; 
  return  i; 
} 

此函数返回包含非emty / null值的数组的最后一个索引。



希望这会有所帮助。

首先，请阅读我对该问题的评论。



解决方案2 by Rakesh Meel非常好，我建议你通过研究这些文章来提高你的知识：

阵列教程 [ ^ ]

数组（C＃编程指南） [ ^ ]

代码：初始化数组（Visual C＃） [ ^ ]

i define string[] name=new string[100];
when i fill this variable,i don't now how i can access to last value???it's changed,sometime 78 sometime 50 sometime 60,...
how i can get last value???

解决方案

visit Here...


http://stackoverflow.com/questions/7387396/get-the-first-and-last-item-of-an-array-of-strings[^]

or
http://stackoverflow.com/questions/1056749/finding-the-last-index-of-an-array

Maybe that would do:

public int LastNonEmptyIndex(string[] array)
{
   int i = array.Length - 1;
   do {
      if (!string.IsNullOrEmpty(array[i])) {
         break;
      }
   } while (--i > -1);
   return i;
}

This function returns the last index of an array containing a non emty/null value.

Hope this helps.

First of all, please, read my comment to the question.

Solution 2 by Rakesh Meel is very good and i would suggest you to improve your knowledge by studying these articles:
Arrays Tutorial[^]
Arrays (C# Programming Guide)[^]
Code: Initializing an Array (Visual C#)[^]

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