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AngularJs 表达式用于将应用程序数据绑定到 HTML。表达式写在双花括号内,例如 {{ expression }}
。表达式的行为类似于 ng-bind
指令。AngularJS 表达式是纯 JavaScript 表达式,并在使用它们的地方输出数据。
<p>Expense on Books : {{cost * quantity}} Rs</p>
<p>Hello {{student.firstname + " " + student.lastname}}!</p>
<p>Roll No: {{student.rollno}}</p>
<p>Marks(Math): {{marks[3]}}</p>
以下示例显示了上述所有表达式的使用
testAngularJS.htm
<html> <head> <title>AngularJS Expressions</title> </head> <body> <h1>Sample Application</h1> <div ng-app = "" ng-init = "quantity = 1;cost = 30; student = {firstname:'Mahesh',lastname:'Parashar',rollno:101}; marks = [80,90,75,73,60]"> <p>Hello {{student.firstname + " " + student.lastname}}!</p> <p>Expense on Books : {{cost * quantity}} Rs</p> <p>Roll No: {{student.rollno}}</p> <p>Marks(Math): {{marks[3]}}</p> </div> <script src = "https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"> </script> </body> </html>