selenium模拟页面下滑到底部

#调用函数scroll将左侧的滚动条滑动到底部
def scroll(driver):
    driver.execute_script(""" 
        (function () { 
            var y = document.body.scrollTop; 
            var step = 100; 
            window.scroll(0, y); 
            function f() { 
                if (y < document.body.scrollHeight) { 
                    y += step; 
                    window.scroll(0, y); 
                    setTimeout(f, 50); 
                }
                else { 
                    window.scroll(0, y); 
                    document.title += "scroll-done"; 
                } 
            } 
            setTimeout(f, 1000); 
        })(); 
        """)
print("开始滚动滚动条")
scroll(chrome)