比较两个字符串值 [英] compare two string value

问题描述

我想比较两个字符串值，就像这样：

I'd like to compare two string values​​, like this:

if (lblCapacity.Text <= lblSizeFile.Text)

我该怎么办？

推荐答案

我假设您正在比较词典的字符串顺序，在这种情况下，您可以使用静态方法String.Compare。

I'm assuming that you are comparing strings in lexicographical order, in which case you can use the Static method String.Compare.

例如，您有两个字符串str1和str2，并且您想查看str1是否在字母表中位于str2之前。您的代码如下所示：

For example, you have two strings str1 and str2, and you want to see if str1 comes before str2 in an alphabet. Your code would look like this :

string str1 = "A string";
string str2 = "Some other string";
if(String.Compare(str1,str2) < 0)
{
   // str1 is less than str2
   Console.WriteLine("Yes");
}
else if(String.Compare(str1,str2) == 0)
{
   // str1 equals str2
   Console.WriteLine("Equals");
}
else
{
   // str11 is greater than str2, and String.Compare returned a value greater than 0
   Console.WriteLine("No");
}

上面的代码将返回yes。 String.Compare有许多重载版本，包括一些您可以忽略大小写或使用格式字符串的版本。查看 String.Compare 。

This above code would return yes. There are many overloaded versions of String.Compare, including some where you can ignore case, or use format strings. Check out String.Compare.

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