DataFrame.append(self,other,ignore_index = False,verify_integrity = False,sort = Nore)
Role is to attach other objects to the end of the caller line, returns a new object. Note that is attached to the back of the line:
| parameter | Parameter Type | Defaults | Explanation |
| other | DataFrame或者Series/dict-like | To append data | |
| ignore_index | boolean | The default is False | If True, no index tag |
| verify_integrity | boolean | The default is False | If True, the index has a duplicate entry error |
| sort | boolean | The default is False | If the self and other columns are not aligned, then the column is sorted. Display transfer sort = True, then sorted. |