In vue, the value passed by $set can't get its next attribute?

vue, I want to get the value of the callback API during the getDepartmentCommon callback, but I can only get the res object during the callback, but I can"t get the res.options,. Some people say that it is because my res is set, so how can I get the attribute value of res?


												
							
																								Vue.js
																asynchronous
															
							
								Sep.16,2021


					
						
					
										
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