如何在字典键中允许额外的字符假设我有一本这样的字典: my_dict = { hey: onevalue, hat: twovalue, how: threeva ...2024-09-30 已阅读: n次
Python正则表达式:删除nonASCII字符和以numb结尾的单词我试图用“”替换字符串中所有非ASCII字符(重音符号),然后替换所有以数字结尾的单词。在 我认为r'\W |\b[^a-z]*[^a-z]\b'会这么做,因为我认为它说“删除非ASCII字符,或者删 ...2024-09-30 已阅读: n次
计数字符串出现次数/枚举lis中的出现次数我需要更新列表如下所示 l=['hey','alan','hey','hey','hey','alan'] 结果一定是 l=['hey','alan','hey1','hey2','hey3','a ...2024-09-30 已阅读: n次
匹配和合并两个文本表?我有两个(相当大,约15k行)csv表,格式如下: Disease/Trait Mapped_gene p-Value Wegener's granulomato ...2024-09-30 已阅读: n次
基于列比较Python如何填充缺失值我想将第2列中缺少的值填充到相应的第1列 import pandas as pd data={"col1":["A","B","C","A","B","C","A","B","A"], "col2": ...2024-09-30 已阅读: n次