排错Fields with a default value must come after any fields without a default.

原始程序:

@dataclass
class DataTrainingArguments:
    Arguments pertaining to what data we are going to input our model for training and eval.
    data_dir: str = field(
        metadata={"help": "The input data dir. Should contain the .txt files for a CoNLL-2003-formatted task."}
    labels: Optional[str] = field(
        metadata={"help": "Path to a file containing all labels. If not specified, CoNLL-2003 labels are used."}
    max_seq_length: int = field(
        default=128,
        metadata={
            "help": "The maximum total input sequence length after tokenization. Sequences longer "
            "than this will be truncated, sequences shorter will be padded."
    overwrite_cache: bool = field(
        default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
想将data_dir添加默认值。如:
 
    data_dir: str = field(
        default='./',
        metadata={"help": "The input data dir. Should contain the .txt files for a CoNLL-2003-formatted task."}
提示错误:
 
Fields with a default value must come after any fields without a default.
 
即有默认值的字段要放在没有默认值的字段后面。
 
@dataclass
class DataTrainingArguments:
    Arguments pertaining to what data we are going to input our model for training and eval.
    labels: Optional[str] = field(
        metadata={"help": "Path to a file containing all labels. If not specified, CoNLL-2003 labels are used."}
    data_dir: str = field(
        default='./',
        metadata={"help": "The input data dir. Should contain the .txt files for a CoNLL-2003-formatted task."}
    max_seq_length: int = field(
        default=128,
        metadata={
            "help": "The maximum total input sequence length after tokenization. Sequences longer "
            "than this will be truncated, sequences shorter will be padded."
    overwrite_cache: bool = field(
        default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
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设置默认值
在命令行中输入1选择解决方案一，随便选一个默认值
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把default=1zhe
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