菜鸟教程在线编辑器

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                用ng-init实现count自加和清零

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="https://cdn.staticfile.net/angular.js/1.4.6/angular.min.js"></script>
</head>
<body>

<div ng-app="" ng-init="count=0">

<button ng-click="count = count + 1">点我！</button>
<button ng-click="count = 0">清零！</button>

<p>{{ count }}</p>

</div>
</body>
</html>
              