从零开始学写脚本【第一天】

怼烎@ 2022-10-16 09:49 189阅读 0赞

> 废话我就不多说了，直接开干

### 新建一个项目 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 1][]

### 安装 selenium ###

> selenium是浏览器自动化测试工具.

控制台输入

pip install selenium

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 2][]

### 下载Chromedriver ###

> 浏览器驱动，代码打开浏览器必须要有浏览器的驱动,不同版本的浏览器驱动也是不一样的
> 
> **下载地址**：[http://chromedriver.storage.googleapis.com/index.html][http_chromedriver.storage.googleapis.com_index.html]

**Google Chrome 浏览器 查看版本**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 3][]

**我是开发版Google Chrome 浏览器，截至目前驱动最新只有有91版的驱动，还好能适配，不然我还得重新安装**

打开 [http://npm.taobao.org/mirrors/chromedriver/][http_npm.taobao.org_mirrors_chromedriver]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 4][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 5][]

**随意解压至一个目录**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 6][]

### 现在我们来试试用代码打开浏览器，并且访问 [https://blog.csdn.net/tangcv][https_blog.csdn.net_tangcv] ###

新建  openChromedriver.py 文件

选中项目，右键

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 7][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 8][]

**写入代码**

from selenium import webdriver
    
    # 驱动地址
    path="D:/python3.9.5/chromedriver.exe"
    browser = webdriver.Chrome(path)
    #打开网页
    browser.get('https://blog.csdn.net/tangcv')

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 9][]

**选中此文件名称，右键**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 10][]

**自动打开浏览器并且访问目标页面 https://blog.csdn.net/tangcv**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 11][]

### 页面里文本框输入内容，并点击查询 ###

既然是脚本，我们不能只是访问页面，肯定还要有点击事件

> 进入页面 [https://blog.csdn.net/tangcv][https_blog.csdn.net_tangcv] 查看页面源代码，我们发现，输入框<input>标签的 id为 search-blog-words ；查询按钮<a> 标签有个属性 class ,为 btn-search-blog

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 12][]

### 查询 id 为 search-blog-words的属性，向其输入“京东准点秒杀脚本” ###

> browser.find\_element\_by\_id("search-blog-words").send\_keys("京东准点秒杀脚本")

### 查询按钮 clsss 名称为 btn-search-blog 的标签，点击按钮 ###

> browser.find\_element\_by\_class\_name('btn-search-blog').click()

**分别是输入内容，点击查询。新修改后的代码为**

from selenium import webdriver
    
    # 驱动地址
    path="D:/python3.9.5/chromedriver.exe"
    browser = webdriver.Chrome(path)
    #打开网页
    browser.get('https://blog.csdn.net/tangcv')
    browser.find_element_by_id("search-blog-words").send_keys("京东准点秒杀脚本")
    browser.find_element_by_class_name('btn-search-blog').click()

### 再次运行代码 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 13][]

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## ##

### 今天先到这里，我们下期再见 ###

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[http_chromedriver.storage.googleapis.com_index.html]: http://chromedriver.storage.googleapis.com/index.html
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 3]: /images/20221014/7ef8b40228894ff1b36d8601678fea7a.png
[http_npm.taobao.org_mirrors_chromedriver]: http://npm.taobao.org/mirrors/chromedriver/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 4]: /images/20221014/f6b66ebcb8454cf1bad9cf632e08458f.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 5]: /images/20221014/0a2bdd5d806e4a5e86b8947a5aa273d7.png
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[https_blog.csdn.net_tangcv]: https://blog.csdn.net/tangcv
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Rhbmdjdg_size_16_color_FFFFFF_t_70 7]: /images/20221014/9b6557db193247958856c18e7ef3df5f.png
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