我正在查看一些我只能假设一次有效的旧代码。MyPage.aspx:functionGetCompanyList(officeId){varcompanyList=document.getElementById('');if(companyList.length==0)PageMethods.GetCompanyList(officeId,OnGetCompanyList);elseEditCompany();}和:代码隐藏:[System.Web.Services.WebMethod()][System.Web.Script.Services.ScriptMethod()]public