.then&.catch不是只會執(zhí)行一個(gè)嗎，為什么for執(zhí)行了，下面的代碼不執(zhí)行，還有catch里的error為什么報(bào)undefined，搞不懂啊            axios.post(url.logintools,this.userInfoFromData)                 .then(response => {                    console.log(response)                    //獲取權(quán)限                     var permissionsChildren = new Array()                    var permissionsParent = new Array()                    for(var i = 0; i<=response.data.responseDataObject.permissionsAll.permissionsChildren.length; i++){                         permissionsChildren.push(response.data.responseDataObject.permissionsAll.permissionsChildren[i].permissionName)                     }                    console.log(this.permissionsChildren)//這行不執(zhí)行                     window.localStorage.setItem("permissionsChildren",permissionsChildren);//這行不執(zhí)行                 })                 .catch(error => {                    console.log(error);//這行打印permissionName is undefined                 });