angular.js - ng-repeat for option tags.

Question

The code is like this:

The page displays like this:

The console view element is like this:

One more loop.
What is the reason for this cycle?
Is there any good solution?
angular version 1.4.5

Answer 1

Solved it myself:
Added:

<option value="">选择</option>

Answer 2

Why use ng-repeate when you can use ng-options. If you use ng-options, remember to write a default please select the item.

Answer 3

When you get the data for the first time, can you display all the data?