Difference: 1. In VUE2.0, all code must be wrapped with the root element, but not in VUE1.0. 2. Components are defined in different ways. 3. The life cycle functions are different. 4. Vue2.0 has deleted all the built-in filters in vue1.0. To use filters in vue2.0, you need to customize them, but vue1.0 does not.
The operating environment of this tutorial: windows7 system, vue2.9.6 version, DELL G3 computer.
1. In each component template, the fragment code that no longer supports
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# #2. Life cycle of 2.0
