Javascript实现动态菜单添加(3)

22.                     switch(ProvinceValue) 
23.                        { 
24.                         //实际项目中，这个城市数组肯定是在服务器获取的，这里为了简便，我就直接自定义了一个数组  
25.                         //如果追求完美，这里还可以加一道缓存，防止重复获取  
26.                        case "HeBei": 
27.                             var CityOfHeBei=["ShiJiaZhuang","CangZhou","LangFang"];  
28.                             for(var i=0;i<CityOfHeBei.length;i++){ 
29.                                 $("<option value='"+CityOfHeBei[i]+"'>"+CityOfHeBei[i]+"</option>").appendTo(CitySelect); 
30.                             } 
31.                              break; 
32.                        case "ShanDong": 
33.                             var CityOfShanDon=["JiNan","DeZhou","QingDao"];      
34.                             for(var i=0;i<CityOfShanDon.length;i++){ 
35.                                 $("<option value='"+CityOfShanDon[i]+"'>"+CityOfShanDon[i]+"</option>").appendTo(CitySelect);