C＃中的字符串长度是1 +实际字符串长度值，我疯了 [英] String length in C# is 1+real string length value, I'm going crazy

问题描述

你好，



这是我第一次看到这种行为。使用这个简单的代码

  string  strInput =   1100100100001111110110101010001000100001011010001100001000110100;  int  strlen = strInput.Length; 

和一串64个字符，我的长度为65.



i获得实际长度+1，每个字符串放在strInput !!中。我该如何解决这个问题？

提前致谢！



我尝试了什么：



更改操作系统中的语言设置，但没有结果

解决方案

您似乎有一个不可打印的字符字符串的开头： e280ad



这是从左到右覆盖字符：

Unicode字符'LEFT-TO-RIGHT OVERRIDE'（U + 202D） [ ^ ]

  string  strInput =   1100100100001111110110101010001000100001011010001100001000110100; 
  int  len1 = strInput.Length;  //   65  
  string  final =  ; 
  for （ int  i =  0 ; i <  strInput.Length; i ++）
 {
  char  c = strInput [i];  //   strInput [0]  - >''（8237） 
  if （ char  .IsDigit（c））
 final + = strInput [i] .ToString（）; 
 
} 
  int  len2 = final.Length;  //   64  

'1100 ....'之前的第一个字符是Unicode，它是不可打印的字符，其unicode值为8237

Unicode Decimal Code& amp;＃8237; [ ^ ]

Hello,

this is the 1st time i see this behavior. With this simple code

string strInput = "‭1100100100001111110110101010001000100001011010001100001000110100";            int strlen = strInput.Length;

and a string of 64 chars i get length of 65.

i get real length +1 with every string i put in strInput!!. How can i solve this?
Thanks in advance!

What I have tried:

to change language settings in OS but with no result

解决方案

You appear to have a non-printable character at the start of your string: e280ad

This is the "Left-to-right override" character:
Unicode Character 'LEFT-TO-RIGHT OVERRIDE' (U+202D)[^]

string strInput = "‭1100100100001111110110101010001000100001011010001100001000110100";
          int len1 = strInput.Length; // 65
          string final = "";
          for (int i = 0; i < strInput.Length; i++)
          {
              char c = strInput[i]; //strInput[0]->'' (8237)
              if (char.IsDigit(c))
                  final += strInput[i].ToString();

          }
          int len2 = final.Length;  //64

The very first char before '1100....' is an Unicode which is non printable char whose unicode value is 8237
Unicode Decimal Code ‭[^]

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