[英]Add quotes and brackets to every element of a list
我需要处理如下的python列表:
PGPrimary=['VDD', 'VSS', 'A', 'Y']
我需要将此列表更改为以下格式:
//PG PRIMARY ("VDD") ("VSS") ("A") ("Y")
我尝试了下面的代码,但它不起作用:
PGPrimary=['VDD', 'VSS', 'A', 'Y']
print("1:PGPrimary:",PGPrimary)
PGPrimary="//PG PRIMARY " + ' '.join(PGPrimary)
(','.join('("' + item + '")' for item in PGPrimary))
print("2:PGPrimary:",PGPrimary)
这是输出:
('1:PGPrimary:', ['VDD', 'VSS', 'A', 'Y'])
('2:PGPrimary:', '//PG PRIMARY VDD VSS A Y')
流程结束,退出代码为0
谁能指出为什么代码不起作用?
str.format
和str.join
:
'//PG PRIMARY {}'.format(' '.join('("{}")'.format(i) for i in PGPrimary))
'("{}")'.format(i) for i in PGPrimary)
遍历列表元素,并在每个元素周围添加括号和引号
' '.join
加入上面的结果可迭代
例:
In [33]: PGPrimary=['VDD', 'VSS', 'A', 'Y']
In [34]: '//PG PRIMARY {}'.format(' '.join('("{}")'.format(i) for i in PGPrimary))
Out[34]: '//PG PRIMARY ("VDD") ("VSS") ("A") ("Y")'
尝试这个:
PGPrimary=['VDD', 'VSS', 'A', 'Y']
print("1:PGPrimary:",PGPrimary)
PGPrimary="//PG PRIMARY " + ' '.join('("' + item + '")' for item in PGPrimary)
print("2:PGPrimary:",PGPrimary)
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