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    【已解决】Mac中用playwright自动操作浏览器实现百度搜索

    搜索 crifan 3399浏览 0评论
    之前已经实现了：
    【已解决】Mac中用Selenium自动操作浏览器实现百度搜索
    和：
    【已解决】Mac中用puppeteer自动操作浏览器实现百度搜索
    现在接着去实现：试试playwright的效果。
    先去简单研究看看
    playwright
    microsoft/playwright: Node.js library to automate Chromium, Firefox and WebKit with a single API (github.com)
    • Node.js library to automate Chromium, Firefox and WebKit with a single API
    微软开发的
    node.js的库
    用于自动化操作浏览器：Chromium，Firefox，WebKit
    最大特点：绿色环保ever-green, 能力强capable, 可靠性高reliable，速度快fast
    支持无头Headless模式
    对应有人实现了python版本
    microsoft/playwright-python: Python version of the Playwright testing and automation library. (github.com)
    Python version of the Playwright testing and automation library.
    原来就是微软自己
    那就去按照教程去：
    【已解决】Mac中安装Python版Playwright和初始化开发环境
    然后接着想办法实现自己要的功能：
    模拟百度搜索自动化
    其中先去：
    【已解决】用Python的Playwright定位并点击百度搜索输入框
    再去：
    【已解决】用Python的Playwright给百度搜索输入框中输入文字
    再去：
    【已解决】用Python的Playwright触发百度首页的搜索
    接着去：
    【已解决】Python的Playwright去解析提取百度搜索的结果
    【总结】
    最后代码：
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    # Function: Playwright demo baidu search
    # Author: Crifan Li
    # Update: 20210331
     
     
    from playwright.sync_api import sync_playwright
     
     
    # here use sync mode
    with sync_playwright() as p:
        chromiumBrowserType = p.chromium
        print("chromiumBrowserType=%s" % chromiumBrowserType)
        browser = chromiumBrowserType.launch(headless=False)
        # chromiumBrowserType=<BrowserType name=chromium executable_path=/Users/xxx/Library/Caches/ms-playwright/chromium-857950/chrome-mac/Chromium.app/Contents/MacOS/Chromium>
        print("browser=%s" % browser)
        # browser=<Browser type=<BrowserType name=chromium executable_path=/Users/xxx/Library/Caches/ms-playwright/chromium-857950/chrome-mac/Chromium.app/Contents/MacOS/Chromium> version=90.0.4430.0>
        page = browser.new_page()
        print("page=%s" % page)
        # page=<Page url='about:blank'>
     
     
        ################################################################################
        # Open url
        ################################################################################
        page.goto('http://www.baidu.com')
        print("page=%s" % page)
        # page=<Page url='https://www.baidu.com/'>
     
     
        ################################################################################
        # Input text
        ################################################################################
        searchStr = "crifan"
        SearchInputSelector = "input#kw.s_ipt"
     
     
        # page.click(SearchInputSelector)
        page.fill(SearchInputSelector, searchStr)
     
     
        ################################################################################
        # Trigger search
        ################################################################################
        EnterKey = "Enter"
     
     
        # Method 1: press Enter key
        # page.keyboard.press(EnterKey)
     
     
        # Method 2: locate element then click
        SearchButtonSelector = "input#su"
        page.press(SearchButtonSelector, EnterKey)
     
     
        # wait -> makesure element visible
        SearchFoundWordsSelector = 'span.nums_text'
        # SearchFoundWordsXpath = "//span[@class='nums_text']"
        page.wait_for_selector(SearchFoundWordsSelector, state="visible")
     
     
        ################################################################################
        # Extract content
        ################################################################################
        resultASelector = "h3[class^='t'] a"
        searchResultAList = page.query_selector_all(resultASelector)
        print("searchResultAList=%s" % searchResultAList)
        # searchResultAList=[<JSHandle preview=JSHandle@<a target="_blank" href="http://www.baidu.com/link?…>在路上on the way - 走别人没走过的路,让别人有路可走</a>>, <JSHandle preview=JSHandle@node>, 。。。, <JSHandle preview=JSHandle@node>]
        searchResultANum = len(searchResultAList)
        print("Found %s search result:" % searchResultANum)
        for curIdx, aElem in enumerate(searchResultAList):
            curNum = curIdx + 1
            print("%s [%d] %s" % ("-"*20, curNum, "-"*20))
            title = aElem.text_content()
            print("title=%s" % title)
            # title=在路上on the way - 走别人没走过的路,让别人有路可走
            baiduLinkUrl = aElem.get_attribute("href")
            print("baiduLinkUrl=%s" % baiduLinkUrl)
            # baiduLinkUrl=http://www.baidu.com/link?url=fB3F0xZmwig9r2M_1pK4BJG00xFPLjJ85X39GheP_fzEA_zJIjX-IleEH_ZL8pfo
     
     
        # do sceeenshot
        screenshotFilename = 'baidu_search_%s_result.png' % searchStr
        page.screenshot(path=screenshotFilename)
     
     
        browser.close()
    输出：
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    chromiumBrowserType=<BrowserType name=chromium executable_path=/Users/xxx/Library/Caches/ms-playwright/chromium-857950/chrome-mac/Chromium.app/Contents/MacOS/Chromium>
    browser=<Browser type=<BrowserType name=chromium executable_path=/Users/xxx/Library/Caches/ms-playwright/chromium-857950/chrome-mac/Chromium.app/Contents/MacOS/Chromium> version=90.0.4430.0>
    page=<Page url='about:blank'>
    page=<Page url='https://www.baidu.com/'>
    searchResultAList=[<JSHandle preview=JSHandle@<a target="_blank" href="http://www.baidu.com/link?…>在路上on the way - 走别人没走过的路,让别人有路可走</a>>, <JSHandle preview=JSHandle@node>, <JSHandle preview=JSHandle@node>, <JSHandle preview=JSHandle@node>, <JSHandle preview=JSHandle@node>, <JSHandle preview=JSHandle@node>, <JSHandle preview=JSHandle@node>, <JSHandle preview=JSHandle@node>, <JSHandle preview=JSHandle@node>, <JSHandle preview=JSHandle@node>]
    Found 10 search result:
    -------------------- [1] --------------------
    title=在路上on the way - 走别人没走过的路,让别人有路可走
    baiduLinkUrl=http://www.baidu.com/link?url=fB3F0xZmwig9r2M_1pK4BJG00xFPLjJ85X39GheP_fzEA_zJIjX-IleEH_ZL8pfo
    -------------------- [2] --------------------
    title=crifan – 在路上
    baiduLinkUrl=http://www.baidu.com/link?url=kmvgD1PraoULnnjUvNPQmwHFQ9uUKkXg_HWy0NI3xI11cV7evpdxyA_4FkVf3zLH
    -------------------- [3] --------------------
    title=crifan简介_crifan的专栏-CSDN博客_crifan
    baiduLinkUrl=http://www.baidu.com/link?url=CHLWAQKOMgb23GmzVCZRIVze9kBNu6DIVoSWQqe21bWq_qZk2zDu_V3pDC1o1i5WC8qXAbUhaBIN8UO9Sjzxfa
    -------------------- [4] --------------------
    title=crifan的微博_微博
    baiduLinkUrl=http://www.baidu.com/link?url=-QwlZ5SEmZD1R2QqdsK7ByUhxmIdX_hiFCX79hg9RTbQ11j5wXaBaYXegXU9WDk3
    -------------------- [5] --------------------
    title=Crifan的电子书大全 | crifan.github.io
    baiduLinkUrl=http://www.baidu.com/link?url=Sgrbyd_pBsm-BTANKwSmyveSWvWj2_IqOOZzYw-SkG8tQ_C6Ccz88zZxHf3Eh1JA
    -------------------- [6] --------------------
    title=GitHub - crifan/crifanLib: crifan's library
    baiduLinkUrl=http://www.baidu.com/link?url=NSZ5IzQ2Qag3CpGLMAbJer3QaAqI7qZOp2Ythiw6o8inoDX-5LqlzOKWTrMzQK5G
    -------------------- [7] --------------------
    title=在路上www.crifan.com - 网站排行榜
    baiduLinkUrl=http://www.baidu.com/link?url=Tc4cbETNKpQXj-kX1pwSOcPG8l9ijRRPqokRSMHgB59rSn6GoWSBzCPu3ky3dN6Cu1pb-4HBZ2_YaVyS7qdDS_
    -------------------- [8] --------------------
    title=crifan的专栏_crifan_CSDN博客-crifan领域博主
    baiduLinkUrl=http://www.baidu.com/link?url=OLkrWu8q9SRZuBN-KzEMO56f82IpIfvbOp-sU3jdjbVBPP3GXBw_8StJgYG-_QrK
    -------------------- [9] --------------------
    title=User crifan - Stack Overflow
    baiduLinkUrl=http://www.baidu.com/link?url=t1rc0EGg33A-uJUiZHKkUWA8ETf6B5P8pBKo0yNCH-VTWluW3xqUlYRHjMz8bQdiN2mJROMhfkX6bY0db_bB_a
    -------------------- [10] --------------------
    title=crifan - Bing 词典
    baiduLinkUrl=http://www.baidu.com/link?url=8z-3hYeLAQ8T4efOf4848LtAdpGdR1Ect9au4JIUB32bm2z412RDsMelFW1R2aIk
    效果：
    附录：
    相关资料：

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