W3School TIY Editor
W3School 在线教程
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暗黑模式
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<!DOCTYPE html> <html> <head> <script> var myWindow; function openWin() { myWindow = window.open("", "", "width=400, height=200"); myWindow.blur(); } function blurWin() { myWindow.blur(); } function focusWin() { myWindow.focus(); } </script> </head> <body> <input type="button" value="打开新窗口" onclick="openWin()"> <input type="button" value="失焦新窗口" onclick="blurWin()"> <input type="button" value="聚焦新窗口" onclick="focusWin()"> </body> </html>