jQuery | :偶数选择器

jQuery :even 选择器用于从元素中选择偶数索引。索引的编号从 0 开始。工作方式与:odd选择器相同，但适用于偶数。

句法

$(":even")

示例 1：

  

    
  
      
  
        $(document).ready(function() {
            $("tr:even").css("background-color", 
                            "green");
        });
    

  

  
    
        GeeksForGeeks
  
        
            
                
                
            
            
                
                
            
            
                
                
            
            
                
                
            
            
                
                
            
            
                
                
            
        CompanyCountryrelianceIndiaflipkartIndiawalmartAmericanErnst HandelAustriaIsland TradingUK
    
  

  

输出：

示例 2：

  

    
  
     
  
    $(document).ready(function() {
       $("tr:even").css("background-color",
                    "lightgreen");
        });
    

  

  
    
        Welcome To GeeksForGeeks
      
  
        
            
                
                
            
            
                
                
            
            
                
                
            
            
                
                
            
        StateCapitaluttar pradeshlucknowpunjabchandigarhharyanacandigarh
    
  

  

输出：