[selenium webdriver Java]检查元素是否存在

      
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        public
      
      
        boolean
      
      
         isElementPresent(WebDriver driver, By by){


      
      
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        try
      
      
        {


      
      
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            driver.findElement(by);


      
      
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        return
      
      
         ture;


      
      
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           }
      
        catch
      
      
        (Exception e){


      
      
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        return
      
      
        false
      
      
        ;


      
      
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            }  


      
      
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       }