检查你后台返回的数据格式，layUI要求格式：
{"msg":"","code":0,"data":[{"password":"123456","phone":"123456","userName":"呵呵","userId":1},{"password":"123456","phone":"123456","userName":"呵呵","userId":2},{"password":"7890","phone":"7890","userName":"呵呵","userId":3}],"count":3}{"msg":"","code":0,"d
