第 1 步：按PrtScn或Alt + PrtScn捕获屏幕或窗口

第 2 步：按Ctrl + V粘贴到此页面

第 3 步：单击 2 个像素以获取长度

第 1 步：按⌘ Command + ⇧ Shift + 3或⌘ Command + ⇧ Shift + 4捕获屏幕或窗口

Step 2: Paste in this page by pressing ⌘ Command+V

Step 3: Click on 2 pixels to get length

Step 1: Capture screen by pressing Home ▢+Hold / Power buttons

Step 2: Paste in this page by long tap and pressing Paste button.

Step 3: Click on 2 pixels to get length

Step 1: Capture screen by pressing Volume up + Power buttons

Step 2: Paste in this page by pressing Paste button.

Step 3: Click on 2 pixels to get length