AngularJS实用入门

1、隔行换色

<!DOCTYPE html>
<html ng-app="my_app">
<head>
    <meta charset="UTF-8">
    <meta name="author" content="" />
    <meta name="copyright" content="" />
    <title>隔行换色</title>
<style>
.white{background:white;}
.ccc {background: #ccc;}
</style>
<script src="angular.js" type="text/javascript"></script>
<script type="text/javascript">
    var app=angular.module('my_app', []);

    app.controller('test',function($scope){
        $scope.arr=[12,5,8,9,10,6,1,2];
    });
</script>
</head>
<body ng-controller="test">
    <ul>
        <li ng-repeat="i in arr" ng-class="{white: $index%2==0, ccc:$index%2==1}">{{i}}</li>
    </ul>
</body>
</html>

2、单选框

<!DOCTYPE html>
<html ng-app="my_app">
<head>
    <meta charset="UTF-8">
    <title>单选框</title>
<style>
#div1 {width:300px; height:300px; border:1px solid black;}
.box {background:red;}
.box2 {background:green;}
.box3 {background:yellow;}
</style>
<script src="angular.js"></script>
<script type="text/javascript">
    //定义模块
    var app = angular.module('my_app',[]);
    //创建控制器
    app.controller('test',function($scope){

    });
</script>
</head>
<body ng-controller="test">
        <input  type="checkbox" ng-model="a" />
        <input  type="checkbox" ng-model="b" />
        <input  type="checkbox" ng-model="c" />
        <div id="div1" ng-class="{box: a, box2: b, box3: c}"></div>
</body>
</html>

3、控制器

<!DOCTYPE html>
<html ng-app="test">
<head>
    <meta charset="UTF-8">
    <title>控制器</title>
<script src="angular.js"></script>
<script>
//定义模块
var app = angular.module('test',[]);
//定义控制器
app.controller('aaa',function($scope){
    $scope.name='blue';
});
</script>
</head>
<body>
    <p ng-controller="aaa">
        我的名字:{{name}}
    </p>
</body>
</html>

4、控制器继承

<!DOCTYPE html>
<html ng-app="aaa">
<head>
    <meta charset="UTF-8">
    <title>controller继承</title>
<script src="angular.js"></script>
<script type="text/javascript">
//定义模块
var app=angular.module('aaa',[]);

app.controller('parent',function($scope){
    $scope.a=12;
});
app.controller('child',function($scope){
    alert($scope.a);
})
</script>
</head>
<body>
    <div ng-controller="parent">
        <div ng-controller="child"></div>
    </div>
</body>
</html>

5、遍历循环

<!DOCTYPE html>
<html ng-app="test">
<head>
    <meta charset="UTF-8">
    <title>遍历循环</title>
<script src="angular.js" type="text/javascript"></script>
<script type="text/javascript">
//定义模块
var app=angular.module('test',[]);
//定义控制器
app.controller('aaa',function($scope){
    $scope.arr=[12,5,8];
});
//model 模型-数据
//module  模块
</script>
</head>
<body>
<ul ng-controller="aaa">
    <li ng-repeat="i in arr">{{i}}</li>
</ul>
</body>
</html>

6、遍历循环并推入数组

<!DOCTYPE html>
<html ng-app="test">
<head>
    <meta charset="UTF-8">
    <title>遍历数组并推入元素</title>
<script src="angular.js" type="text/javascript"></script>
<script type="text/javascript">
var app = angular.module('test',[]);
app.controller('aaa',function($scope){
    $scope.arr=[12,5,8];
});
</script>
</head>
<body ng-controller="aaa">
<input type="button" value="按钮" ng-click="arr.push(99);">
    <ul>
        <li ng-repeat="i in arr">{{i}}</li>
    </ul>   
</body>
</html>

7、遍历数组累加自删除

<!DOCTYPE html>
<html ng-app="test">
<head>
    <meta charset="UTF-8">
    <title>遍历数组修改删除</title>
<script src="angular.js"></script>
<script type="text/javascript">
    var app = angular.module('test',[]);
    app.controller('aaa',function($scope){
        var arr=[12,5,8,7,99,16];
        $scope.arr=arr;
        $scope.a=12;

        //ng函数
        $scope.remove=function(index){
            arr.splice(index,1);
        }
    })
</script>
</head>
<body ng-controller="aaa">
<input type="button" value="ng修改" ng-click="a=a+1" />
{{a}}
<ul>
    <li ng-repeat="i in arr">{{i}}<a href="javascript:;" ng-click="remove($index)">删除{{$index}}</a></li>
</ul>

</body>
</html>

8、遍历

<!DOCTYPE html>
<html ng-app="test">
<head>
    <meta charset="UTF-8">
    <title></title>
<script src="angular.js"></script>
<script type="text/javascript">
    var app = angular.module('test',[]);

    app.controller('aaa',function($scope){
        $scope.arr=[12,5,8,7,99,16];
    });
</script>
</head>
<body ng-controller="aaa">
    <ul>
        <li ng-repeat="i in arr">{{i}}</li>
    </ul>
</body>
</html>

9、遍历数组套json

<!DOCTYPE html>
<html ng-app="test">
<head>
    <meta charset="UTF-8">
    <title>遍历数组套json</title>
<script src="angular.js"></script>
<script type="text/javascript">
    var app=angular.module('test',[]);
    app.controller('aaa',function($scope){
        $scope.arr=[
            {name: 'blue',age: 18},
            {name: '老肖',age: 16},
            {name:'张三',age:25},
            {name:'张三',age:25}
        ];
    });
</script>
</head>
<body ng-controller="aaa">
<ul>
    <li ng-repeat="item in arr">我叫{{item.name}},今年{{item.age}}</li>
</ul>
</body>
</html>

10、执行

<!DOCTYPE html>
<html ng-app="test">
<head>
    <meta charset="UTF-8">
    <title></title>
<script src="angular.js" type="text/javascript"></script>
<script type="text/javascript">
//定义模块
    var app=angular.module('test',[]);
//控制器
app.controller('aaa',function($scope){
    $scope.a=12;
    $scope.b=0;
    //谁,执行
    $scope.$watch('a',function(){
        $scope.b = $scope.a*2;
    })
})
</script>
</head>
<body ng-controller="aaa">
    <input type="text" ng-model="a">
    {{b}}
</body>
</html>

11、执行

<!DOCTYPE html>
<html ng-app="test">
<head>
    <meta charset="UTF-8">
    <title></title>
<style>
</style>
<script src="angular.js" type="text/javascript"></script>
<script type="text/javascript">
    // 定义模块
    var app=angular.module('test',[]);
    //控制器
    app.controller('aaa',function($scope){
        $scope.a=12;
        $scope.b=5;
        //谁,执行
        $scope.$watch('a+b',function(){
            alert('变了');
        });
    });
</script>
</head>
<body ng-controller="aaa">
    <input type="text" ng-model="a">
    <input type="text" ng-model="b">
</body>
</html>

12、执行

<!DOCTYPE html>
<html ng-app="test">
<head>
    <meta charset="UTF-8">
    <title>执行</title>
<script src="angular.js"></script>
<script>
var app = angular.module('test',[]);
app.controller('aaa',function($scope){
    $scope.arr=[12,5,8];
    //谁,执行
    $scope.$watch('arr',function(){
        alert('变了');
    },true);
    $scope.sum=function(){
        var r =0;
        for(var i=0;i<$scope.arr.length;i++){
            r+=$scope.arr[i];
        }
        return r;
    }
    $scope.alert=function(str){
        alert(str);
    };
});
</script>
</head>
<body ng-controller="aaa">
    <input type="number" ng-repeat="i in arr" ng-model="arr[$index]"/>
    {{sum()}}
    <input type="button" value="看看" ng-click="alert(arr)" />
</body>
</html>

13、执行

<!DOCTYPE html>
<html ng-app="test">
<head>
    <meta charset="UTF-8">
    <title>累加</title>
<script src="angular.js"></script>
<script>
var app = angular.module('test',[]);

app.controller('aaa',function($scope){
    $scope.json={a:12,b:5,c:8};
    $scope.sum=function(){
        var r = 0;
        for(var i in $scope.json){
            r+=$scope.json[i];
        }
        return r;
    };
});
</script>
</head>
<body ng-controller="aaa">
    <input type="number" ng-repeat="i in json" value="{{$index}}" />
    {{sum()}}
</body>
</html>

14、执行

<!DOCTYPE html>
<html ng-app="test">
<head>
    <meta charset="UTF-8">
    <title>执行</title>
<script src="angular.js"></script>
<script>
var app = angular.module('test',[]);
app.controller('aaa',function($scope){
    $scope.json={a:12,b:5,c:8};
    $scope.$watch('json',function(){
        alert('a');
    },true);
});
</script>
</head>
<body ng-controller="aaa">
    <input type="button" value="按钮" ng-click="json.a = json.a+1" />
</body>
</html>

15、单选框与布尔值

<!DOCTYPE html>
<html ng-app="">
<head>
    <meta charset="UTF-8">
    <title></title>
<script src="angular.js"></script>
</head>
<body>
    <p>
        <input type="checkbox" ng-model="aaa" /><br>
        {{aaa}}
    </p>
</body>
</html>

16、布尔值运用,显示于隐藏

<!DOCTYPE html>
<html ng-app="">
<head>
    <meta charset="UTF-8">
    <title></title>
<style>
#div1 {width:100px; height:200px; background:#CCC;}
</style>
<script src="angular.js"></script>
</head>
<body>
    <input type="checkbox" ng-model="aaa" /><br>
    <div id="div1" ng-show="aaa"></div>
</body>
</html>

17、下拉列表

<!DOCTYPE html>
<html ng-app="">
<head>
    <meta charset="UTF-8">
    <title></title>
</head>
<script src="angular.js"></script>
<body>
    <p>
        <select ng-model="city">
            <option value="1">北京</option>
            <option value="2">上海</option>
            <option value="3">武汉</option>
        </select>
        城市:{{city}}
    </p>
</body>
</html>

18、点击累加

<!DOCTYPE html>
<html ng-app="">
<head>
    <meta charset="UTF-8">
    <title></title>
<script src="angular.js"></script>
</head>
<body ng-init="a=12;">
<input type="button" value="aaa" ng-click="a=a+1" />
{{a}}

</body>
</html>

19、关于model

<!DOCTYPE html>
<html ng-app="">
<head>
    <meta charset="UTF-8">
    <title></title>
<script src="angular.js"></script>
</head>
<body ng-init="a=12;">
    <input type="text" ng-model="a" />
    <input type="text" value="{{a}}" />
{{a}}
</body>
</html>

20、计算

<!DOCTYPE html>
<html ng-app="test">
<head>
    <meta charset="UTF-8">
    <title>模板、技术</title>
<script src="angular.js"></script>
<script>
var app=angular.module('test',[]);
app.controller('aaa',function($scope){
    $scope.a=12;
    $scope.b=5;

    $scope.sum=function(){
        return $scope.a+$scope.b;
    }
})
</script>
</head>
<body ng-controller="aaa">
    <input type="number" ng-model="a" />
    <input type="number" ng-model="b" />
{{a}}{{b}}{{a*b}}<br>
{{sum()}}
</body>
</html>

21、过滤器、控制器、遍历

<!DOCTYPE html>
<html ng-app="test">
<head>
    <meta charset="UTF-8">
    <title>模板</title>
<script src="angular.js"></script>
<script>
var app=angular.module('test', []);

app.filter('time2date', function (){
    function toDou(n)
    {
        return n<10?'0'+n:''+n;
    }

    return function (input){
        var oDate=new Date();
        oDate.setTime(input*1000);

        return oDate.getFullYear()+'年'+toDou(oDate.getMonth()+1)+'月'+toDou(oDate.getDate())+' '+toDou(oDate.getHours())+':'+toDou(oDate.getMinutes())+':'+toDou(oDate.getSeconds());
    };
});
app.filter('toDou', function (){
    return function (input){
        return Number(input).toFixed(2);
    };
});
app.filter('rmb', function (){
    return function (input){
        //alert(input);
        return '¥'+input;
    };
});

app.controller('aaa', function ($scope){
    $scope.arr=[
        {name: 'xxx鞋', price: 12.8, time: 1429931918},
        {name: 'xxx衣服', price: 250, time: 1429930918},
        {name: 'xxx帽子', price: 25.6, time: 1429921918},
    ];
});
</script>
</head>
<body ng-controller="aaa">
<ul>
    <li ng-repeat="item in arr">
        <h2>{{item.name}}</h2>
        单价:{{item.price|toDou|rmb}},
        上架时间:{{item.time|time2date}}
    </li>
</ul>
</body>
</html>

22、数量与总价

<!DOCTYPE html>
<html ng-app="test">
<head>
    <meta charset="UTF-8">
    <title></title>
<script src="angular.js"></script>
<script type="text/javascript">
var app=angular.module('test',[]);
app.controller('aaa',function($scope){
    $scope.arr=[
        {name:'xxx鞋',price:12.8,count:1},
        {name:'xxx衣服',price:250,count:2},
        {name:'xxx帽子',price:25.6,count:8},
    ];

$scope.total=function(){
    var result=0;
    for(var i=0;i<$scope.arr.length;i++){
        result+=$scope.arr[i].price*$scope.arr[i].count;
    }
    return result;
}

});

</script>
</head>
<body ng-controller="aaa">
<ul>
    <li ng-repeat="item in arr">
        <h2>{{item.name}}</h2>
        单价:{{item.price}}<input type="number" ng-model="item.count" /><br>
        总价:{{item.price*item.count}}
    </li>
</ul>
    总价:{{total()}}
</body>
</html>

23、指令

<!DOCTYPE html>
<html ng-app="my_app">
<head>
    <meta charset="UTF-8">
    <title></title>
<script src="angular.js"></script>
<script>
var app=angular.module('my_app', []);

app.directive('red', function (){
    return function (scope, element, attr){
        //element——JQ对象
        element.css('background', 'red');
    };
});
</script>
</head>
<body>
<input type="text" red />
<input type="text" />
<input type="text" />
<input type="text" />   
</body>
</html>

24、指令与隔行换色

<!DOCTYPE html>
<html ng-app="my_app">
<head>
    <meta charset="UTF-8">
    <title></title>
<script src="angular.js"></script>
<script src="jquery-1.7.2.js"></script>
<script type="text/javascript">
    var app=angular.module('my_app', []);
    app.directive('changeColor',function(){
        return function (scope, element, attr){
                var arr=element.children();

                for(var i=0;i<arr.length;i++)
                {
                    arr[i].style.background=i%2?'#CCC':'';
                }
            };
    });
</script>
</head>
<body>
<ul change-color>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
</ul>
</body>
</html>

25、$http

<!DOCTYPE html>
<html ng-app="index">
<head>
    <meta charset="UTF-8">
    <title>ajax</title>
<script src="angular.js"></script>
<script src="ajax.js"></script>
<script>
var app = angular.module("index",[]);
app.controller("ajax",function($scope,$http){
    $scope.arr = [];

    $http.get("a.txt",{params:{}}).success(function(arr){
        $scope.arr = arr;
    }).error(function(){
        alert("失败");
    });
});
</script>
</head>
<body ng-controller="ajax">
    <ul>
        <li ng-repeat="item in arr">{{item}}</li>
    </ul>   
</body>
</html>
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