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Angular学习笔记01
一、AngularJS的用途
- 把应用程序绑定到HTML元素
- 可以克隆和重复HTML元素
- 可显示和隐藏元素
- 可在HTML“背后”添加代码
- 支持输入验证
二、AngularJS指令
- ng-app:将Angular绑定于应用程序
- ng-model:将输入域(元素)的值绑定于应用程序
<div ng-app=""> <p>名字 : <input type="text" ng-model="name"></p> <h1>Hello {{name}}</h1> </div>
3.ng-bind:将变量name绑定到某个段落innerHTML
<div data-ng-app="" data-ng-init="firstName=‘zsz‘"> <p>姓名为 <span data-ng-bind="firstName"></span></p> <p>{{firstName}}</p> </div>
运行结果为:姓名为zsz
zsz
4.ng-init:初始化变量
1 <div ng-app=""> 2 <h3>ng-init初始化变量</h3> 3 <div ng-init="name=‘aurora‘;age=‘18‘"> 4 <p ng-bind="name+‘,‘+age"></p> 5 <p>{{name+‘,‘+age}}</p> 6 <p ng-bind="name"></p> 7 <p ng-bind="age"></p> 8 </div> 9 <h3>ng-init初始化对象</h3> 10 <div ng-init="hero={name:‘aurora‘,role:‘sup‘,line:‘不管刮风还是下雨,太阳照常升起‘}"> 11 <p ng-bind="hero.name+‘,‘+hero.role+‘,‘+hero.line"></p> 12 <p ng-bind="hero.name"></p> 13 <p ng-bind="hero.role"></p> 14 <p ng-bind="hero.line"></p> 15 </div> 16 <h3>ng-init初始化数组</h3> 17 <div ng-init="heros=[‘曙光女神‘,‘堕落天使‘,‘魂锁典狱长‘]"> 18 <p ng-bind="heros[0]+‘,‘+heros[1]+‘,‘+heros[2]"></p> 19 <p ng-bind="heros[0]"></p> 20 <p ng-bind="heros[1]"></p> 21 <p ng-bind="heros[2]"></p> 22 </div> 23 24 <h3>ng-controller控制器</h3> 25 <div ng-controller="contr-2"> 26 First Name: <input type="text" ng-model="firstName"> 27 Last Name: <input type="text" ng-model="lastName"> 28 Full Name : <span>{{firstName + "," + lastName}}</span> 29 Full Name : <span ng-bind="firstName + ‘,‘ + lastName"></span> 30 </div> 31 32 <h3>ng-repeat遍历无重复集合</h3> 33 <div ng-init="names=[1,2,3]"> 34 <ul> 35 <li ng-repeat="x in names"> 36 {{x}} 37 </li> 38 </ul> 39 </div> 40 <h3>ng-repeat遍历重复集合</h3> 41 <div ng-init="number=[1,2,2,3]"> 42 <ul> 43 <li ng-repeat="x in number track by $index"> 44 {{x}} 45 </li> 46 </ul> 47 </div> 48 <h3>ng-repeat遍历对象</h3> 49 <div ng-controller="contr-3"> 50 <ul> 51 <li ng-repeat="(key,value) in object track by $index"> 52 {{key+":"+value}} 53 </li> 54 </ul> 55 </div> 56 <h3>ng-repeat遍历对象(按原有顺序)</h3> 57 <div ng-controller="contr-4"> 58 <ul ng-repeat="obj in objs "> 59 <li ng-repeat="(key,value) in obj "> 60 {{key+":"+value}} 61 </li> 62 </ul> 63 </div> 64 <h3>ng-repeat遍历对象(属性详解)</h3> 65 <table ng-controller="contr-5"> 66 <tr ng-repeat="(key, value) in objs "> 67 <td>学号: 68 <span ng-bind="$index"></span> 69 </td> 70 <td> 71 <span ng-bind="key"></span>: 72 <span ng-bind="value"></span> 73 </td> 74 <td>是否为奇数? 75 <span ng-bind="$odd"></span> 76 </td> 77 <td>是否为偶数? 78 <span ng-bind="$even"></span> 79 </td> 80 <td>排行是老大? 81 <span ng-bind="$first"></span> 82 </td> 83 <td>排行最小? 84 <span ng-bind="$last"></span> 85 </td> 86 <td>排行中间? 87 <span ng-bind="$middle"></span> 88 </td> 89 </tr> 90 </table> 91 <h3>ng-repeat start/end</h3> 92 <div ng-controller="contr-6"> 93 <div ng-repeat-start="(key,value) in objs"> 94 <p>学号: 95 <span ng-bind="$index"></span> 96 </p> 97 <p> 98 <span ng-bind="key"></span>: 99 <span ng-bind="value"></span> 100 </p> 101 </div> 102 <div ng-repeat-end></div> 103 </div> 104 </div>
Angular学习笔记01
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