For example, imagine a text file named "sample" with three columns that look like this.

举例来说，假设一个文本文件“sample”有三列，其内容如下所示。

youdao

For example, imagine a text file named "sample" with three columns that look like this.

举例来说，假设一个文本文件“sample”有三列，其内容如下所示。

youdao