javascript中对中文进行编码解码的方式

中文编码：

function upload() {
var form = document.getElementById('topic');
if ($('uploadfile').value == "") {
alert("请选择文件！");
return;
}
$('uploadfile').value = escape($('uploadfile').value);
form.action = "<c:url value='/upload/uploadfile.do'/>";
form.target = "file_upload";
form.submit();
}

中文解码：

function deletefile(filename) {
filename = unescape(filename);
topicController.deleteFile(filename, function(data) {
if (data == 1) {
map.remove(filename);
rawdiv();
}
});
}

关键点就是用escape()和unescape()这两个函数