如何在C#中比较两个字符串 [英] How to compare two strings in C#

问题描述

你好，
谁能告诉我在C#中比较两个字符串的最佳方法是什么，比较的结果必须为true或false.
实际上我正在使用
(((Microsoft.Office.Interop.Excel.Range)workSheet.Cells [IDIndexRow，ObjTypeCol]).Value2.ToString))=="ID")
但这似乎不起作用.似乎转换存在问题.

Hello,
Can any one please tell me what is the best way to compare two strings in C#, the result of comparision must be true or false.
Actually i am using
((Microsoft.Office.Interop.Excel.Range)workSheet.Cells[IDIndexRow, ObjTypeCol]).Value2.ToString)) == "ID")
But this doesnt seems to work. it seems like there is some problem with conversion.

推荐答案

您可以使用以下任何一种方法.
字符串s1 ="abc";
字符串s2 ="abc";

//使用if else
if(s1 == s2)
返回true;
其他

返回false;

//使用三元运算符
bool cmp =((s1 == s2)?true:false);

you can use any of the below methods.
string s1="abc";
string s2="abc";

//using if else
if(s1 == s2)
return true;
else

return false;

//using ternary operator
bool cmp = ((s1==s2)?true:false);

string.equals(string)应该可以解决问题，并且是首选的方法

Hi,

string.equals(string) should do the trick and is the preferred way to go

string str = "Hello";
string str2 = "Hello";
bool bResult = str.Equals(str2);

据我所知，已经尝试并阅读了互联网

String.Equals(string)[标准的String.Equals]

和

==

本质上是同一回事.我更喜欢在很多情况下使用以下命令(如果我不确定并且不想弄乱情况)；

string.Equals(string，StringComparison.CurrentCultureIgnoreCase)

From what I know, have tried, and have read around the internets

String.Equals(string) [The standard String.Equals]

and

==

Are essentially the same thing. I prefer to use the following in a lot of cases though (if I''m not sure and don''t want to mess around with case);

string.Equals( string, StringComparison.CurrentCultureIgnoreCase )

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