add PDF download button to CNKI.
当前为
| 日期 | 安装次数 | 更新检查总次数 |
|---|---|---|
| 2025-06-14 | 1 | 2,950 |
| 2025-06-15 | 0 | 2,969 |
| 2025-06-16 | 4 | 3,403 |
| 2025-06-17 | 3 | 3,536 |
| 2025-06-18 | 5 | 3,412 |
| 2025-06-19 | 5 | 3,402 |
| 2025-06-20 | 5 | 3,485 |
| 2025-06-21 | 6 | 3,145 |
| 2025-06-22 | 2 | 3,160 |
| 2025-06-23 | 4 | 3,586 |
| 2025-06-24 | 4 | 3,593 |
| 2025-06-25 | 3 | 3,445 |
| 2025-06-26 | 0 | 3,461 |
| 2025-06-27 | 1 | 3,358 |
| 2025-06-28 | 5 | 3,024 |
| 2025-06-29 | 2 | 3,057 |
| 2025-06-30 | 5 | 3,525 |
| 2025-07-01 | 3 | 3,458 |
| 2025-07-02 | 2 | 3,513 |
| 2025-07-03 | 1 | 3,473 |
| 2025-07-04 | 1 | 3,409 |
| 2025-07-05 | 2 | 3,061 |
| 2025-07-06 | 4 | 2,950 |
| 2025-07-07 | 2 | 3,329 |
| 2025-07-08 | 7 | 3,402 |
| 2025-07-09 | 6 | 3,375 |
| 2025-07-10 | 2 | 3,350 |
| 2025-07-11 | 4 | 3,250 |
| 2025-07-12 | 2 | 2,838 |
| 2025-07-13 | 1 | 2,477 |