background:
Two tables, according to the table on the left click event
Form on the right to switch display content
1. binding events, access to the subscript of the current row of the table Click
2. Definition 4 array, the default is an empty array structure
3. When a component is loaded, the first array is assigned to a table
4. Define the event contents, implemented in accordance with the current standard handover row corresponding to the content
