如何使用Pandas Python将字符串拆分为数据帧中的几列？

该

str.split

expand

>>> df['string'].str.split(',', expand=True)         0        1         20  astring      isa    string1  another   string        la2      123      232   another>>>

带有列名：

>>> df['string'].str.split(',', expand=True).rename(columns = lambda x: "string"+str(x+1))   string1  string2   string30  astring      isa    string1  another   string        la2      123      232   another

Python> = 3.6 f字符串的情况更加整洁：

>>> (df['string'].str.split(',', expand=True)...   .rename(columns=lambda x: f"string_{x+1}"))  string_1 string_2  string_30  astring      isa    string1  another   string        la2      123      232   another