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。
The table that you create with the code below has six rows and three columns.
用下面代码创建的表有6 个行，3 个列。
Each row has three columns associated with it.
每一行有3个列。
Each row has three columns associated with it.
每一行有3个列。
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