Article in English: You can use your computer's built-in screenshot function to take a screenshot on Windows or take a screenshot on Mac by going to the Chrome page in question and then pressing your computer's proper key combination. If you want to use a Chrome extension to take your screenshot, proceed with the rest of this method. Click or double-click the Chrome app icon, which resembles a red, yellow, green, and blue ball. This extension is free to install, and will take a screenshot of your entire page (not just the window's contents) in Google Chrome. This blue button is in the upper-right corner of the page. Doing so installs the Full Page Screen Shot extension in your Chrome browser. Open the website, service, or item of which you want to take a screenshot. It's a camera-shaped icon in the upper-right corner of the Chrome window. Clicking it prompts Chrome to begin screenshotting your page. If you ever can't find the "Full Page Screen Capture" icon, click ⋮ and look for it at the top of the resulting drop-down menu. Depending on how long the page is, this can take anywhere from a second to a minute or two. Once the image opens in a new tab, you can proceed. Click the PDF download button in the upper-right corner of the page to download the image as a PDF file, or click the downward facing arrow to the right of the PDF icon to download the image as a PNG file.  If prompted to allow Full Page Screen Shot access to your downloads, click Allow on the prompt. You may be asked to specify a download location before your screenshot will download.

Summary in Chinese:
用电脑的截屏功能。 打开 打开全屏截图页面（Full Page Screen Shot page） 点击添加到Chrome。 根据提示点击添加扩展。 前往要截屏的页面。 点击“全屏截图”图标。 等待Chrome完成截屏。 下载图片。