如何使用 jQuery 禁用复制、粘贴、剪切和右键单击？

ctrl+c 、 ctrl+v 、 ctrl+x和鼠标右键单击用于从任何地方复制、粘贴和剪切任何内容。可以针对特定任务或页面禁用它。让我们看看如何禁用剪切、复制、粘贴和右键单击。

它可以通过两种方式完成：

• 通过使用 on() 方法
• 通过使用 keydown() 和 mousedown() 方法

通过使用 on() 方法：它是 jQuery 中的内置方法。借助此方法，我们将能够禁用剪切、复制、粘贴和右键单击选项。

• 句法：

  $(“selector”).on(event, function)

• 例子：

    
  
      The jQuery Example
      
      
      
          #geek {
              padding: 65 px 0;
          }
      
    
      
          $(document).ready(function() {
              
              // Disables ctrl+v, ctrl+x, ctrl+c.
              $('textarea').on("cut", function(e) {
                  $("#d2").text('cut. not allowed!');
                  e.preventDefault();
              });
              $('textarea').on("copy", function(e) {
                  $("#d2").text('copy. not allowed!');
                  e.preventDefault();
              });
              $('textarea').on("paste", function(e) {
                  $("#d2").text('paste. not allowed!');
                  e.preventDefault();
              });
              
              // Above all three can be combined into one, above is 
              // executed separately for understanding purposes.
              /* $('textarea').on("cut copy paste", function(e) {
              $("#d2").text('right-click is disabled!');
              e.preventDefault();
              }); */
              
              // Disables right-click.
              $('textarea').mousedown(function(e) {
                  if (e.button == 2) {
                      e.preventDefault();
                      alert('right-click is disabled!');
                  }
              });
          });
      
  
    
  
      
          
              GeeksforGeeks
              
                  The below textarea won't allow any cut, copy, 
                  paste and right-click operations.
              
              
              
          
      
  
    

• 输出：
  

通过使用 keydown() 和 mousedown() 方法：通过使用 key-down 事件和禁用右键单击，我们使用 mouse-down() 方法。借助这两种方法，我们将能够禁用剪切、复制、粘贴和右键单击选项。

• 句法：

  $(“selector”).keydown(function)

  $(“selector”).mousedown(function)

• 例子：

    
  
      
      
      
          #geek {
              padding: 65px 0;
          }
      
    
      
          $(document).ready(function() {
              $(document).keydown(function(event) {
    
                  // 86 is the keycode of v
                  if (event.ctrlKey == true && (event.which == '86')) {
                      $("#d2").text('paste. not allowed!');
                      event.preventDefault();
                  }
    
                  // 88 is the keycode of x
                  if (event.ctrlKey == true && (event.which == '88')) {
                      $("#d2").text('cut. not allowed!');
                      event.preventDefault();
                  }
    
                  // 67 is the keycode of c
                  if (event.ctrlKey == true && (event.which == '67')) {
                      $("#d2").text('copy. not allowed!');
                      event.preventDefault();
                  }
    
                  // Above all three can be combined into one, above is 
                  // executed separately for understanding purposes.
                  /* if (event.ctrlKey==true && (event.which == '86' 
                  || event.which == '67' || event.which == '88')) {
                      alert('cut. copy. paste. not allowed!');
                      event.preventDefault();
                  } */
              });
              $('textarea').mousedown(function(e) {
                  if (e.button == 2) {
                      alert('right-click is disabled!');
                      e.preventDefault();
                  }
              });
          });
      
  
    
  
      
          
              GeeksforGeeks
              
                  The below textarea won't allow any cut, copy,
                  paste and right-click operations.
              
              
              
          
      
  
    

• 输出：