1.如果是外部调用
<script language="javascript" type="text/javascript" src="tswcypy.js"></script>
2.确定页面编码一致
3.html头里加入
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
4..在controller里面加入
public function _initialize() {
header("Content-Type:text/html; charset=utf-8");
}