我是熊猫新手。有什么办法可以将这两个数据框合并到以下结果中
数据框1：-
|-------------|---------|----------------------|-------|
|Test Case | SubTest | App | Count |
| geekebench5 | OpenCL | geekbench_x86_64.exe | 1.0 |
| geekebench5 | OpenCL | geekbench_x86_64.exe | 1.0 |
| geekebench5 | Vulkan | geekbench_x86_64.exe | 1.0 |
| geekebench5 | cpu | geekbench_x86_64.exe | 2.0 |
| geekebench5 | cpu | geekbench_x86_64.exe | 1.0 |
| geekebench5 | cpu | geekbench_x86_64.exe | 1.0 |
| geekebench5 | cpu | geekbench_x86_64.exe | 1.0 |
| geekebench5 | cpu | Process | 1.0 |
|-------------|---------|----------------------|-------|
数据帧2：-
|-------------|---------|----------------------|-------|
|Test Case | SubTest | App | Count |
| geekebench5 | OpenCL | geekbench_x86_64.exe | 2.0 |
| geekebench5 | Vulkan | geekbench_x86_64.exe | 1.0 |
| geekebench5 | cpu | geekbench_x86_64.exe | 2.0 |
| geekebench5 | cpu | geekbench_x86_64.exe | 1.0 |
|-------------|---------|----------------------|-------|
数据帧结果：-
|-------------|---------|----------------------|---------|---------|
|Test Case | SubTest | App | Count_x | Count_y |
| geekebench5 | OpenCL | geekbench_x86_64.exe | 1.0 | 2.0 |
| geekebench5 | OpenCL | geekbench_x86_64.exe | 1.0 | NaN |
| geekebench5 | Vulkan | geekbench_x86_64.exe | 1.0 | 1.0 |
| geekebench5 | cpu | geekbench_x86_64.exe | 2.0 | 2.0 |
| geekebench5 | cpu | geekbench_x86_64.exe | 1.0 | 1.0 |
| geekebench5 | cpu | geekbench_x86_64.exe | 1.0 | NaN |
| geekebench5 | cpu | geekbench_x86_64.exe | 1.0 | NaN |
| geekebench5 | cpu | Process | 1.0 | NaN |
|-------------|---------|----------------------|---------|---------|
使用左操作合并没有帮助。行数增加，而不是NaN，它输入前一行值