精华 selenium_webdriver(python)调用js脚本

#coding=utf-8
from selenium import webdriver
import time
driver = webdriver.Firefox()
driver.get("https://www.baidu.com/")
#给搜索输入框标红javascript脚本
js="var q=document.getElementById("kw");q.style.border="2px solid red";"
#调用给搜索输入框标红js脚本
driver.execute_script(js)
time.sleep(3)
#单独执行js脚本
driver.execute_script('alert("输入框标红了!")')
time.sleep(3)
#接受提示信息 
driver.switch_to_alert().accept()
time.sleep(3)
#js隐藏元素,将获取的图片元素隐藏
img1 = driver.find_element_by_xpath("//*[@id='lg']/img")
driver.execute_script('$(arguments[0]).fadeOut()',img1)
time.sleep(3)
driver.find_element_by_xpath("//*[@id='kw']").send_keys("selenium")
driver.find_element_by_xpath("//*[@id='su']").click()
time.sleep(3)
driver.quit()

原文地址：https://blog.csdn.net/u013372487/article/details/46502853

js中设置元素class的三种方法小结

<!DOCTYPE HTML> 
<HTML> 
<HEAD> 
<meta charset="utf-8" /> 
<title>el.className = 'abc'</title> 
<style type="text/css"> 
.abc { 
background: red; 
} 
</style> 
</HEAD> 
<BODY> 
<div id="d1">test div</div> 
<script> 
var div = document.getElementById('d1'); 
div.className = 'abc'; 
</script> 
</BODY> 
</HTML>

js="var div = document.getElementById("kw");div.className = "abc";"
driver[0].execute_script(js)
先定位到ID 然后修改这个ID的class属性

//JavaScript属性选择器 选中后用来更改属性值
var a=document.querySelector("div[data-hover-cls=inputs-hover]");
//更改属性值class为“”
a.setAttribute("class","")
//注意此方法只适用于ID CLASS TAG之外的子属性的选择

js = "var a=document.querySelector("div[data-hover-cls=inputs-hover]");a.setAttribute("class","inputs J_LaterHover inputs-hover")"
        self.driver.execute_script(js)

        jiage_mini = "var a=document.querySelector("input[aria-label=价格最小值]");a.setAttribute("value","50")"
        self.driver.execute_script(jiage_mini)
        jiage_max = "var a=document.querySelector("input[aria-label=价格最大值]");a.setAttribute("value","50")"
        self.driver.execute_script(jiage_max)

        submit="var a=document.querySelector("button[type=button]"),a.click()"
        self.driver.execute_script(submit)

小例子

TB翻页

var button=document.querySelector("a[trace=srp_select_pagedown]")

XP查看更多

var button=document.querySelector("div[class=item-collection-detail__products-more]")
button.click()

虾皮

单次点击【查看更多】
var button=document.querySelector("div[class=item-collection-detail__products-more]")
button.click()

循环点击【查看更多】
for (var i=1; i<10; i++)
{

//延时1秒执行 https://www.oschina.net/question/141209_21625?sort=time
var beginTime=new Date().getTime();
while(new Date().getTime() < beginTime + 2000) {

}
//要执行的代码
var button=document.querySelector("div[class=item-collection-detail__products-more]");
button.click();
}

循环点击新增

//class选择器【分类添加商品】
var a=document.getElementsByClassName("item-collection-detail__products-item__action")
for (var i=1; i<10; i++)
{ a[i].click();
//延时器
var beginTime=new Date().getTime();
while(new Date().getTime() < beginTime + 200) {
}
}
//i=商品数量 beginTime=间隔时间