Question

我是python和编码的新手（昨晚）。我需要生成大量具有特定输出格式的itertools产品。我可以使用

生成组合

import itertools
s=[ ['CPT1','OTHERCPT1','OTHERCPT2','OTHERCPT3','OTHERCPT4','OTHERCPT5','OTHERCPT6','OTHERCPT7','OTHERCPT8','OTHERCPT9','OTHERCPT10','CONCURR1','CONCURR2','CONCURR3','CONCURR4','CONCURR5','CONCURR6','CONCURR7','CONCURR8','CONCURR9','CONCURR10'], ['15756','15757','15758','43496','49006','20969','20955','20956','20957','20962','20970','20972','20973'],['CPT1','OTHERCPT1','OTHERCPT2','OTHERCPT3','OTHERCPT4','OTHERCPT5','OTHERCPT6','OTHERCPT7','OTHERCPT8','OTHERCPT9','OTHERCPT10','CONCURR1','CONCURR2','CONCURR3','CONCURR4','CONCURR5','CONCURR6','CONCURR7','CONCURR8','CONCURR9','CONCURR10'], ['15756','15757','15758','43496','49006','20969','20955','20956','20957','20962','20970','20972','20973']]
x=list(itertools.product(*s))
print x

然而输出显示如下：

('CPT1', '15756', 'CPT1', '15756'), ... etc.

我希望它出现：

SELECT IF(CPT1='15756' AND CPT1='15756').
SELECT IF(...).
etc.

感谢您的帮助！

Answer 1

您应该使用字符串格式（https://docs.python.org/2/library/string.html）

import itertools
s = [[...first list...],[...second list...]]
for p in itertools.product(*s):
    print("SELECT IF(CPT1='{}' AND CPT1='{}').".format(*p))

格式化Itertools.Products的输出

1 个答案: