样本数据:
| | Unnamed: 0 | Status | Clarification Opened | Failed |
|---|------------|-------------------------|----------------------|--------|
| 1 | 1 | P0 Dry Run - 12/02/18 | | 2.0 |
| 2 | 2 | P1 Test Plan - 06/02/18 | | 2.0 |
| 3 | 3 | P2 Test plan - 03/01/18 | 2.0 | 21.0 |
我需要知道如何删除不需要的前两列,并且列的大小会有所不同