python 在python中从字符串列表列表转换为整数列表列表
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/2166577/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Casting from list of lists of strings to list of lists of ints in python
提问by Chris
I'm reading some numbers from a data source that represent xy coordinates that I'll be using for a TSP-esque problem. I'm new to python, so I'm trying to make the most of lists. After reading and parsing through the data, I'm left with a list of string lists that looks like this:
我正在从数据源中读取一些数字，这些数字代表我将用于 TSP 式问题的 xy 坐标。我是 python 的新手，所以我试图充分利用列表。阅读并解析数据后，我得到了一个字符串列表，如下所示：
[['565.0', '575.0'], ['1215.0', '245.0'], ...yougetthepoint... ['1740.0', '245.0']]
[['565.0', '575.0'], ['1215.0', '245.0'], ...yougetthepoint... ['1740.0', '245.0']]
I would rather be dealing with integer points. How can I transform these lists containing strings to lists containing ints? They don't seem to be casting nicely, as I get this error:
我宁愿处理整数点。如何将这些包含字符串的列表转换为包含整数的列表？他们似乎没有很好地投射，因为我收到了这个错误：
ValueError: invalid literal for int() with base 10: '565.0'
ValueError：int() 的无效文字，基数为 10：'565.0'
The decimal seems to be causing issues.
小数点似乎引起了问题。
回答by Max Shawabkeh
x = [['565.0', '575.0'], ['1215.0', '245.0'], ['1740.0', '245.0']]
x = [[int(float(j)) for j in i] for i in x]
