Mức độ lỗi trong php là gì?

Lỗi là lỗi hoặc lỗi trong một chương trình. Nó có thể là một số loại. Lỗi có thể xảy ra do sai cú pháp hoặc sai logic. Đó là một loại lỗi hoặc tình trạng hiểu biết sai về mã

Có nhiều loại lỗi khác nhau trong PHP nhưng về cơ bản có bốn loại lỗi chính

  1. Lỗi phân tích cú pháp hoặc Lỗi cú pháp. Là loại lỗi do người lập trình thực hiện trong mã nguồn của chương trình. Lỗi cú pháp được bắt bởi trình biên dịch. Sau khi sửa lỗi cú pháp, trình biên dịch sẽ biên dịch mã và thực thi nó. Lỗi phân tích cú pháp có thể do dấu ngoặc kép không đóng, dấu ngoặc đơn bị thiếu hoặc thừa, dấu ngoặc nhọn không đóng, thiếu dấu chấm phẩy, v.v.
    Ví dụ.




    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    2

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    3
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    4____45
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    6

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    0____01
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    6

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    3
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    3
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    6

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    3
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    7
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    6

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    9

    Lỗi

    PHP Parse error:  syntax error, unexpected '=' 
    in /home/18cb2875ac563160a6120819bab084c8.php on line 3
    

    Giải trình. Chương trình trên thiếu dấu $ ở dòng 3 nên báo lỗi

  2. Lỗi nghiêm trọng. Đây là loại lỗi mà trình biên dịch PHP hiểu mã PHP nhưng nó nhận ra một chức năng không được khai báo. Điều này có nghĩa là chức năng được gọi mà không có định nghĩa của chức năng.
    Ví dụ.




    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    2

    PHP Warning:  include[gfg.php]: failed to 
    open stream: No such file or directory in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    PHP Warning:  include[]: Failed opening 'gfg.php'
     for inclusion [include_path='.:/usr/share/php'] in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    
    1

    PHP Warning:  include[gfg.php]: failed to 
    open stream: No such file or directory in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    PHP Warning:  include[]: Failed opening 'gfg.php'
     for inclusion [include_path='.:/usr/share/php'] in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    
    2
    PHP Warning:  include[gfg.php]: failed to 
    open stream: No such file or directory in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    PHP Warning:  include[]: Failed opening 'gfg.php'
     for inclusion [include_path='.:/usr/share/php'] in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    
    3
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    3
    PHP Warning:  include[gfg.php]: failed to 
    open stream: No such file or directory in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    PHP Warning:  include[]: Failed opening 'gfg.php'
     for inclusion [include_path='.:/usr/share/php'] in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    
    5
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    7
    PHP Warning:  include[gfg.php]: failed to 
    open stream: No such file or directory in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    PHP Warning:  include[]: Failed opening 'gfg.php'
     for inclusion [include_path='.:/usr/share/php'] in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    
    7

    PHP Warning:  include[gfg.php]: failed to 
    open stream: No such file or directory in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    PHP Warning:  include[]: Failed opening 'gfg.php'
     for inclusion [include_path='.:/usr/share/php'] in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    
    8

    PHP Warning:  include[gfg.php]: failed to 
    open stream: No such file or directory in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    PHP Warning:  include[]: Failed opening 'gfg.php'
     for inclusion [include_path='.:/usr/share/php'] in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    
    9
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    50
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    4
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    3
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    53
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    7
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    6

    PHP Warning:  include[gfg.php]: failed to 
    open stream: No such file or directory in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    PHP Warning:  include[]: Failed opening 'gfg.php'
     for inclusion [include_path='.:/usr/share/php'] in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    
    9
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    3
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    58
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    59
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    50
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    6

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    32

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    3
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    34

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    7
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    36

    PHP Warning:  include[gfg.php]: failed to 
    open stream: No such file or directory in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    PHP Warning:  include[]: Failed opening 'gfg.php'
     for inclusion [include_path='.:/usr/share/php'] in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    
    3______43____75______07
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    21

    PHP Warning:  include[gfg.php]: failed to 
    open stream: No such file or directory in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    PHP Warning:  include[]: Failed opening 'gfg.php'
     for inclusion [include_path='.:/usr/share/php'] in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    
    1

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    23
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    3____75______07
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    21

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    9

    Lỗi

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    

    Giải trình. Ở dòng 12, hàm được gọi nhưng không có định nghĩa hàm. Vì vậy, nó đưa ra lỗi

  3. Lỗi Cảnh báo. Lý do chính của lỗi cảnh báo bao gồm một tệp bị thiếu. Điều này có nghĩa là hàm PHP gọi tệp bị thiếu.
    Ví dụ.




    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    29

    PHP Warning:  include[gfg.php]: failed to 
    open stream: No such file or directory in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    PHP Warning:  include[]: Failed opening 'gfg.php'
     for inclusion [include_path='.:/usr/share/php'] in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    
    1

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    3
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    4
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    33
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    6

    PHP Warning:  include[gfg.php]: failed to 
    open stream: No such file or directory in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    PHP Warning:  include[]: Failed opening 'gfg.php'
     for inclusion [include_path='.:/usr/share/php'] in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    
    1

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    36
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    37____438
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    21

    PHP Warning:  include[gfg.php]: failed to 
    open stream: No such file or directory in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    PHP Warning:  include[]: Failed opening 'gfg.php'
     for inclusion [include_path='.:/usr/share/php'] in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    
    1

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    3
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    3
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    59____444
    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    6

    PHP Fatal error:  Uncaught Error: 
    Call to undefined function diff[] 
    in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12
    
    Stack trace:
    #0 {main}
      thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
    
    9

    Lỗi

    PHP Warning:  include[gfg.php]: failed to 
    open stream: No such file or directory in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    PHP Warning:  include[]: Failed opening 'gfg.php'
     for inclusion [include_path='.:/usr/share/php'] in 
    /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
    

    Giải trình. Chương trình này gọi một tệp gfg không xác định. php không có sẵn. Vì vậy, nó tạo ra lỗi

    Các mức độ của lỗi là gì?

    Trong khuôn khổ kiểm tra giả thuyết, có hai loại lỗi. Lỗi loại I và lỗi loại II . Lỗi loại I xảy ra nếu một giả thuyết không đúng bị từ chối [“dương tính giả”], trong khi lỗi loại II xảy ra nếu một giả thuyết không có giá trị sai không bị từ chối [“phủ định sai”].

    Chức năng lỗi PHP là gì?

    Các hàm báo lỗi được dùng để xử lý và ghi nhật ký lỗi . Các chức năng lỗi cho phép chúng tôi xác định các quy tắc xử lý lỗi của riêng mình và sửa đổi cách các lỗi có thể được ghi lại. Các chức năng ghi nhật ký cho phép chúng tôi gửi tin nhắn trực tiếp đến các máy, email hoặc nhật ký hệ thống khác.

    Làm cách nào để kiểm tra lỗi trong PHP?

    Cách nhanh nhất để hiển thị tất cả lỗi và cảnh báo php là thêm những dòng này vào tệp mã PHP của bạn. ini_set['lỗi_hiển_thị', 1];

    E_notice trong PHP là gì?

    Hằng số PHP E_NOTICE đề cập đến thông báo thời gian chạy . Các thông báo cho biết rằng tập lệnh gặp phải điều gì đó có thể chỉ ra lỗi nhưng cũng có thể xảy ra trong quá trình chạy tập lệnh thông thường.

Chủ Đề