Python realizes CSV file read and write in one minute

caimouse 2020-11-13 08:28:47
python realizes csv file read


Follow CSV Documents have been dealing with for a long time , But I still remember it clearly in my mind , The reason is that I'm so impressed , It's like what happened yesterday . I remember that year or about to graduate from college , Because of a lot of experimental data , At least a few G. Because there's so much data , The tutor asked us to process the data , Extract useful data . Just such a simple task , He made a big mistake , Almost graduation is a problem . It turned out to be like this , There was a classmate in the experiment , He wanted to show his amazing programming skills , use C Language to write programs to read CSV file , And filter the data , As a result, he wrote the file name wrong , Put the original CSV File data is written to filtered data , As a result, the original data was lost . When he found out , Immediately find the backup file , It turns out that the backup hard disk is broken . We're thinking all day about how to recover data , I didn't sleep well for a week . If you can't find the data , Then the paper can't be written , I can't write a paper , The defense was not passed , If you don't pass the defense, you can't graduate , If you can't finish your job, you'll lose your job , No job means continuing to ask for money from home , But there's no money at home . For four years in College , A lot of money has been spent , Borrowing from the East and demolishing from the West . Parents are tired day and night , So I often get sick . What income can rural families have at that time , Only by farming can we get some income . And farming is a very hard work , Because I need to get up more than four in the morning , First prepare pig food , Feed the pigs enough to go to the fields to work all day . Think of it here. , I spent my parents' hard-earned money , As a result, there was no harvest from graduation , The heart is He Qi's pain .

    From then on , Operation on file data , Always be very careful , Advance gradually and entrench oneself at every step , Such as backup , such as SVN Backup , such as GIT Backup , such as U Disk backup , Such as cloud backup and so on . So in programming , Be sure to keep

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