在我的aspx页面中:
<script type="text/javascript">
Ext.onReady(function() {
Ext.get('mb1').on('click', function(e) {
Ext.MessageBox.confirm('Confirm', 'Are you sure you want to do that?', showResult);
});
function showResult() {
Ext.example.msg('test');
</script>
<div>
<asp:Button ID="mb1" runat="server" Text="Button" />
</div>
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我收到错误消息"ext is undefined".谁能帮我?