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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>本教程(w3big.com)</title> <script> function open_win() { window.open("http://www.microsoft.com/"); window.open("http://www.w3schools.com/"); } </script> </head> <body> <form> <input type="button" value="打开窗口" onclick="open_win()"> </form> </body> </html>