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<!DOCTYPE html> <html> <body> <h2>JavaScript Date.parse()</h2> <p>Date.parse() 返回日期与 1970 年 1 月 1 日之间的毫秒数：</p> <p id="demo"></p> <script> var msec = Date.parse("March 21, 2012"); document.getElementById("demo").innerHTML = msec; </script> </body> </html>