Extjs5.0中的新特性

We are excited that Ext JS 5 is now available! Ext JS 5 introduces many new and exciting improvements to the Sencha Framework. These changes bring about new functionality, usability and style. While adding all of the new features you’re about to see, we’ve tried to minimize changes that would make your upgrade to Ext JS 5 difficult. When breaking changes were made, we also added diagnostic messages, when possible, to explain what changed and what you should do to update your application. For details on these changes, see the We are excited that Ext JS 5 is now availab