题解 | #用户常用语言有多少#
用户常用语言有多少
https://www.nowcoder.com/practice/b44891b56f5d434b8312dcee75675cc8
import sys import pandas as pd # df = pd.read_csv("Nowcoder.csv", dtype=object) df = pd.read_csv("Nowcoder.csv") lan = set(df["Language"]) print(len(lan)) print(list(lan))