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dump成json字符串以及编码问题 import json persons = [ { 'username':"张三", 'age': 18, 'country':"李四" }, { 'username':"bbb", 'age': 19, 'country':"ch...

从csv文件中读取数据 movies.csv文件中的数据 movie_id,ratting,time,director 1001,6.6,101,a1 1002,6.8,102,a2 1003,6.8,103,a3 1004,7.8,104,a4 1005,8.8,105,a5 1006,6.8,106,a6 1007,6.8,107,a7 1008,6.8,108,a8 1009,6.8,...