日期:2014-05-16 浏览次数:20366 次
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title></title> <script type="text/javascript"> var array = [];//变量问题你把它在函数外面定义就行了 function test() { id = parseInt(document.getElementById('txt_one').value); k = 0; alert("id是" + id); switch (k) { case 0: array[id] = id; break; } for (var i = 0; i < array.length; i++) { alert("数组的长度为" + array.length); alert(array[i]); } } </script> </head> <body> <input type="text" id="txt_one" value="0"/> <input type="button" id="btn_one" value="点击" onclick="test()"/> </body> </html>