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                            # Selenium 執行 JavaScript

> 原文： [https://pythonbasics.org/selenium_execute_javascript/](https://pythonbasics.org/selenium_execute_javascript/)

Selenium Webdriver 可以執行 Javascript。 加載頁面后，您可以執行所需的任何 JavaScript。 必須安裝 Web 驅動程序，Selenium 才能工作。

只需調用方法`execute_script(js)`，其中 js 是您的 JavaScript 代碼。


## javascript

### Selenium 執行 javascript

加載頁面后，下面的程序將運行一行 javascript 命令。 這將在網頁中顯示警報框。

```py
from selenium import webdriver

driver=webdriver.Firefox()
driver.implicitly_wait(3)
driver.get("https://pythonbasics.org")
js = 'alert("Hello World")'
driver.execute_script(js)

```

![selenium execute javascript](https://img.kancloud.cn/a5/bc/a5bc3f7f734f562d97b3b16720e83e05_874x472.jpg)

[下載示例](https://gum.co/GjuJxo)
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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