First you write the contents of the mydata list to the file, then you reposition the file pointer to the start of the file and read the contents.

首先，把mydata list的内容写入文件，然后把文件指针重新定位到文件开头，并读入内容。

youdao

First you write the contents of the mydata list to the file, then you reposition the file pointer to the start of the file and read the contents.

首先，把mydata list的内容写入文件，然后把文件指针重新定位到文件开头，并读入内容。

youdao