如何从python脚本中读取csv文件？ [英] How to read a csv file from a python script?
问题描述
大家好，
我想通过我的python脚本读取csv文件的内容。
csv文件说n行，每行包含一些数字被逗号隔开。我必须分别访问特定行和所有数字。例如：csv文件是这样的：
1 01,02,05,07,18
2 00.01,04
3 09,20,21
现在第一个数字是行号将通过命令行args作为输入提供。
i想得到行号后面的数字...即第1行我想获得01,02,05,07,18不是作为一个完整的行而是作为单独的数字。
plz help
Hi all,
I want to read the contents of a csv file thru my python script.
The csv file has say n rows and each row contains some numbers separated by commas. I have to access a specific row and then all the numbers separately. For ex: the csv file is something like this:
1 01,02,05,07,18
2 00.01,04
3 09,20,21
now the first number which is the number of the row will be provided as input thru command line args.
i want to get the numbers following the row number...i.e for row 1 i want to get 01,02,05,07,18 not as one complete line but as separate numbers.
plz help
推荐答案
大家好，
我想通过csv文件读取内容我的python脚本。
csv文件说n行，每行包含一些用逗号分隔的数字。我必须分别访问特定行和所有数字。例如：csv文件是这样的：
1 01,02,05,07,18
2 00.01,04
3 09,20,21
现在第一个数字是行号将通过命令行args作为输入提供。
i想得到行号后面的数字...即第1行我想获得01,02,05,07,18不是作为一个完整的行而是作为单独的数字。
plz help
Hi all,
I want to read the contents of a csv file thru my python script.
The csv file has say n rows and each row contains some numbers separated by commas. I have to access a specific row and then all the numbers separately. For ex: the csv file is something like this:
1 01,02,05,07,18
2 00.01,04
3 09,20,21
now the first number which is the number of the row will be provided as input thru command line args.
i want to get the numbers following the row number...i.e for row 1 i want to get 01,02,05,07,18 not as one complete line but as separate numbers.
plz help
，因为你的数据在行号之后有一个很大的空格，而在其他地方，你可以在空白处使用split（）。
例如
since your data has a significant blank space just after the row number and nowhere else, you can use split() on blank.
eg
大家好，
我想通过我的python脚本读取csv文件的内容。
csv文件说n行，每行包含一些用逗号分隔的数字。我必须分别访问特定行和所有数字。例如：csv文件是这样的：
1 01,02,05,07,18
2 00.01,04
3 09,20,21
现在第一个数字是行号将通过命令行args作为输入提供。
i想得到行号后面的数字...即第1行我想获得01,02,05,07,18不是作为一个完整的行而是作为单独的数字。
plz help
Hi all,
I want to read the contents of a csv file thru my python script.
The csv file has say n rows and each row contains some numbers separated by commas. I have to access a specific row and then all the numbers separately. For ex: the csv file is something like this:
1 01,02,05,07,18
2 00.01,04
3 09,20,21
now the first number which is the number of the row will be provided as input thru command line args.
i want to get the numbers following the row number...i.e for row 1 i want to get 01,02,05,07,18 not as one complete line but as separate numbers.
plz help
我的朋友ghostdog74有一个非常好的解决方案，如果事实上行以行号开头且条目之间没有空格。
A真正的csv文件的格式更像是：
1st_value，2nd_value等
对于这样的文件，csv模块也是一个不错的选择。
My friend ghostdog74 has a very good solution if, in fact, rows start with row number and there are NO spaces between entries.
A true csv file would have a format more like:
1st_value, 2nd_value, etc
For such files, the csv module may be a good choice, too.
我的朋友ghostdog74有一个非常好的解决方案，实际上，行以行号开头且条目之间没有空格。
一个真正的csv文件的格式更像是：
1st_value，2nd_value等
对于这样的文件，csv模块也是一个不错的选择。
My friend ghostdog74 has a very good solution if, in fact, rows start with row number and there are NO spaces between entries.
A true csv file would have a format more like:
1st_value, 2nd_value, etc
For such files, the csv module may be a good choice, too.
实际上情况有点不同..
csv文件中有几行，每行都以一个唯一的数字开头用另一组数字。正如我在上一篇文章中所说的那样。我必须访问一个特定的行和它后面的数字。
Actually the situation is little bit different..
there are several rows in the csv file and each row starts with a unique number followed by another set of numbers. as i told in the previous post. I have to access a particular row and the numbers following it.
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