<!DOCTYPE html>
<html ng-app="myApp">
<head>
<meta charset="utf-8">
<title></title>
<script src="js/angular.min.js"></script>
</head>
<body ng-controller="c">
<select ng-model="a" ng-change="fn()">
<option value="111">111</option>
<option value="222">222</option>
<option value="333">333</option>
</select>
<ul>
<li ng-repeat="v in value">{{v}}</li>
</ul>
</body>
<script>
var m1 = angular.module('myApp',[]);
m1.controller('c',['$scope', '$http',function($scope, $http){
$scope.value = [];
$scope.fn = function() {
console.log($scope.a);
$http.get('get'+ $scope.a +'.txt').success(function(data) {
console.log(data);
$scope.value = data;
})
}
}])
</script>
</html>
如果下拉列表是在ng-controller里，要设置默认值，需要在controller函数中添加：
$scope.a = 111;
ng-init呢 或许可以试下
你需要先
<select ng-model="xxx"></select>
这个时候，默认值就是 xxx 的值
试试给select的value赋值