W3School TIY Editor
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<!DOCTYPE html> <html> <body> <p>单击按钮可显示本月的名称。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { var month = new Array(); month[0] = "January"; month[1] = "February"; month[2] = "March"; month[3] = "April"; month[4] = "May"; month[5] = "June"; month[6] = "July"; month[7] = "August"; month[8] = "September"; month[9] = "October"; month[10] = "November"; month[11] = "December"; var d = new Date(); var n = month[d.getMonth()]; document.getElementById("demo").innerHTML = n; } </script> </body> </html>