Refer to the old driver, compare the differences of the contents of the documents-CodePudding

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Refer to the old driver, compare the differences of the contents of the documents

Time：09-16

I have two files, contents of file 1
Xiao Ming I'm xiao Ming
12 a: xiao li I'm xiao li

Content of the file 2
1 I am wang wang
Xiao Ming I'm xiao Ming
23 I'm xiao li xiao li

The contents of the file 2 there will be a new, serial number also will order down, can be obtained by comparing the third field of new content 1 wang?

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