ng-bind 具有单向数据绑定($scope --> 视图).它有一个快捷方式 {{ val }}它显示了插入到 html 中的范围值 $scope.val，其中 val 是一个变量名.

ng-bind has one-way data binding ($scope --> view). It has a shortcut {{ val }} which displays the scope value $scope.val inserted into html where val is a variable name.

ng-model 旨在放在表单元素内部，并具有双向数据绑定($scope --> 视图和视图 --> $scope)例如.

ng-model is intended to be put inside of form elements and has two-way data binding ($scope --> view and view --> $scope) e.g. <input ng-model="val"/>.