值得专门一篇文章，把链接存在乱七八糟小技巧中吧。

首先，在run中点击 add configuration。进行编辑，示例如下：

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Python: Current File",
            "python": "/S/xj/anaconda3/envs/sum/bin/python",
            "type": "python",
            "request": "launch",
            "program": "${file}",
            "console": "integratedTerminal",
            "env":{
                "CUDA_VISIBLE_DEVICES":"1"
            },
            "args": [
                "gigaword-graph",
                "-a", "transformer_stack_with_graph_copy_gigaword_big",
                "--optimizer", "adam", 
                "--lr", "0.0001", 
                "-s", "src", 
                "-t", "tgt",
                "--dropout", "0.1",
                "--max-tokens", "2000",
                "--share-decoder-input-output-embed",
                "--task", "translation_with_graph_attention_with_copy",
                "--adam-betas", "(0.9, 0.98)" ,
                "--save-dir", "checkpoints/transformer-graph-gigaword", 
                "--share-all-embeddings",
                "--lr-scheduler", "reduce_lr_on_plateau", 
                "--lr-shrink", "0.5", 
                "--criterion", "cross_entropy_copy",
                "--update-freq", "2"
            ]

        }
    ]
}

主要有：

1. python中写你虚拟环境的python的路径
2. env 写你使用哪个gpu。想必也可以增加其他的环境变量。
3. args中写入你传入的命令行参数。看来数字也可以作为字符串传入，名字和值直接用逗号。格式模仿上面就行。

然后就可以设断点，在程序入口debug开始run了

参考：https://code.visualstudio.com/docs/python/debugging