SearchUserTable() {
            var SearchUserText = RoleManage.SearchUserText.trim();
            if (SearchUserText.trim() == "") {
                RoleManage.tableUserData = RoleManage.tableUserAllData

            }//RoleManage.tableUserAllData存储着显示的所有数据
 else {
                RoleManage.tableUserData = RoleManage.tableUserAllData.filter(e => {
                    if (e.UserAccount.toUpperCase().indexOf(SearchUserText.toUpperCase()) >= 0) {
                        return true;
                    }
                });//filter是一个方法，indexof实现查找
            }


        },