我拉在从数据库分开真/假字符串值。我举的例子只是为了说明我从数据库中得到的现实是一个字符串值的真假，我不能改变这个。
我想做的是让一个单选按钮显示它们的值，如果为true，则显示为selected，如果为false，则显示为not selected。
这一点在我下面的回答中工作得很好，但是当用户选择一个不同的按钮时，我想让这个值为真，并将所有其他值设置为假。
我尝试了各种方法，包括ng checked，但这对ng模型不起作用。我发现angularJS中的单选按钮非常混乱，有人能帮我理解我应该做什么吗？谢谢你
<!doctype html>
<html ng-app="sample" >
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>Test</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<link rel="stylesheet" href="app/bootstrap/css/bootstrap.css">
<link rel="stylesheet" href="app/css/style.css">
<script src="node_modules/jquery/dist/jquery.min.js"></script>
<script src="app/bootstrap/js/bootstrap.min.js"></script>
<script src="node_modules/angular/angular.js"></script>
<script>
var MyApp = angular.module('sample', []);
MyApp.controller('MainCtrl', function($scope) {
$scope.red = 'true';
$scope.yellow = 'false';
$scope.blue = 'false';
$scope.green = 'false';
$scope.orange = 'false';
$scope.purple = 'false';
$scope.black = 'false';
$scope.pink = 'false';
$scope.white = 'false';
});
</script>
</head>
<body ng-controller="MainCtrl">
<div class="container" ><!-- ng-repeat="x in alien.colours" -->
<h3>What colour alien are you?</h3>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="red" />
<label>Red</label> Value is {{red}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="yellow" />
<label>Yellow</label> Value is {{yellow}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="blue" />
<label>Blue</label> Value is {{blue}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="green" />
<label>Green</label> Value is {{green}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="orange" />
<label>Orange</label> Value is {{orange}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="purple" />
<label>Purple</label> Value is {{purple}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="black" />
<label>Black</label> Value is {{black}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="pink" />
<label>Pink</label> Value is {{pink}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="white" />
<label>White</label> Value is {{white}}<br>
</div>
</body>
</html>
下面是当你选择一个不同的按钮时发生的事情，值更新为真按钮，但不能设置为假
这样做的一种方法（非常基本，可以改进很多！）正在使用对象数组为您执行此任务。
小提琴：https://jsfiddle.net/t3t6kueL/
在你的Javascript中，你可以这样做：
var MyApp = angular.module('sample', []);
MyApp.controller('MainCtrl', function($scope) {
$scope.colors = [{
name: 'Red', // name => For presentation
value: 'false' // value => For toggling the group's values
},
{
name: 'Yellow',
value: 'false'
},
{
name: 'Blue',
value: 'false'
},
{
name: 'Green',
value: 'false'
},
{
name: 'Orange',
value: 'false'
},
{
name: 'Purple',
value: 'false'
},
{
name: 'Black',
value: 'false'
},
{
name: 'Pink',
value: 'false'
},
{
name: 'White',
value: 'false'
},
]
// Expose a method to change the group's values
$scope.selectColor = function(selectedColorName) {
// Loop through all of the colors
$scope.colors.forEach(function(color) {
// If this is what's being set, then set this to true
// Note: If there are two different objects, with the same name, you will end up with 2 true values here...
if (color.name === selectedColorName) {
color.value = 'true';
// For all the others, set it to false
} else {
color.value = 'false';
}
});
}
});
这将允许您移动逻辑并处理应用程序代码中要显示的内容，从而使HTML更加精简，如：
<div class="container">
<h3>What colour alien are you?</h3>
<div ng-repeat="color in colors">
<input type="radio" name="AliCol" ng-click="selectColor(color.name)" />
<label>{{color.name}}</label> Value is {{color.value}}<br>
</div>
</div>
使用单个值表示用户的选择。有关工作示例，请参阅下面的代码片段，有关更多信息，请参阅文档。
var MyApp = angular.module("sample", [])
MyApp.controller("MainCtrl", function($scope) {
$scope.alienColor = "blue" // set the initial value here
})<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.7.0/angular.min.js"></script>
<div ng-app="sample" ng-controller="MainCtrl">
<div class="container">
<!-- ng-repeat="x in alien.colours" -->
<h3>What colour alien are you?</h3>
<input type="radio" name="AliCol" value="red" ng-model="alienColor" />
<label>Red</label> Value is {{red}}
<br>
<input type="radio" name="AliCol" value="yellow" ng-model="alienColor" />
<label>Yellow</label> Value is {{yellow}}
<br>
<input type="radio" name="AliCol" value="blue" ng-model="alienColor" />
<label>Blue</label> Value is {{blue}}
<br>
<input type="radio" name="AliCol" value="green" ng-model="alienColor" />
<label>Green</label> Value is {{green}}
<br>
<input type="radio" name="AliCol" value="orange" ng-model="alienColor" />
<label>Orange</label> Value is {{orange}}
<br>
<input type="radio" name="AliCol" value="purple" ng-model="alienColor" />
<label>Purple</label> Value is {{purple}}
<br>
<input type="radio" name="AliCol" value="black" ng-model="alienColor" />
<label>Black</label> Value is {{black}}
<br>
<input type="radio" name="AliCol" value="pink" ng-model="alienColor" />
<label>Pink</label> Value is {{pink}}
<br>
<input type="radio" name="AliCol" value="white" ng-model="alienColor" />
<label>White</label> Value is {{white}}
<br>
</div>
{{ alienColor }}
</div>