python+playwright 学习 |
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python+playwright 学习
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前言
selenium 里面有个driver.page_source 可以获取整个html页面的内容，playwright里面也有类似的方法 使用 page.content() page.content() 获取html内容使用示例 from playwright.sync_api import sync_playwright # 上海悠悠 wx:283340479 # blog:https://www.cnblogs.com/yoyoketang/ with sync_playwright() as p: browser = p.chromium.launch(headless=False) context = browser.new_context() page = context.new_page() page.goto("https://www.cnblogs.com/yoyoketang/") print(page.content())
对于喜欢爬虫的小伙伴就可以去抓取页面上的内容了。 inner_html() 与 inner_text()page.content() 是获取整个页面的HTML,如果我们只需获取某个元素的HTML，如下图
可以使用locator().inner_html() 方法获取 inner_html() 获取元素的整个html源码内容 inner_text() 获取元素的文本内容 from playwright.sync_api import sync_playwright # 上海悠悠 wx:283340479 # blog:https://www.cnblogs.com/yoyoketang/ with sync_playwright() as p: browser = p.chromium.launch(headless=False) context = browser.new_context() page = context.new_page() page.goto("https://www.cnblogs.com/yoyoketang/") # print(page.content()) # 获取某个元素的HTML blog = page.locator('#blogTitle') print(blog.inner_html()) print('-------------上海-悠悠----------------------') print(blog.inner_text())
text_content() 用来获取某个元素内所有文本内容，包含子元素内容，隐藏元素也能获取。 inner_text() 的返回值会被格式化 ,但是text_content()的返回值不会被格式化 最重要的区别 inner_text()返回的值, 依赖于页面的显示, text_content()依赖于代码的内容 from playwright.sync_api import sync_playwright # 上海悠悠 wx:283340479 # blog:https://www.cnblogs.com/yoyoketang/ with sync_playwright() as p: browser = p.chromium.launch(headless=False) context = browser.new_context() page = context.new_page() page.goto("https://www.cnblogs.com/yoyoketang/") # print(page.content()) # 获取某个元素的HTML blog = page.locator('#blogTitle') # print(blog.inner_html()) # print('-------------上海-悠悠----------------------') # print(blog.inner_text()) print(blog.text_content())
all_inner_texts() 和 all_text_contents() 也是用于获取页面上的文本，但是返回的是list列表 from playwright.sync_api import sync_playwright # 上海悠悠 wx:283340479 # blog:https://www.cnblogs.com/yoyoketang/ with sync_playwright() as p: browser = p.chromium.launch(headless=False) context = browser.new_context() page = context.new_page() page.goto("https://www.cnblogs.com/yoyoketang/") # print(page.content()) # 获取某个元素的HTML blog = page.locator('#blogTitle') # print(blog.inner_html()) # print('-------------上海-悠悠----------------------') # print(blog.inner_text()) # print(blog.text_content()) print(blog.all_inner_texts()) print('-------------上海-悠悠----------------------') print(blog.all_text_contents())
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