add python_csv.py
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*.pkl
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*.mp3
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*.mp4
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*.csv
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.*
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test/
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### MyShow: 玩点好玩的--知乎全部话题关系可视化
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### python_markov_chain.py: 玩点好玩的--使用马尔可夫模型自动生成文章
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### python_wechat.py: 玩点好玩的--自己写一个微信小助手
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### python_csv.py: Python中CSV文件的简单读写
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===================================================================================================
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### 您可以fork该项目, 并在修改后提交Pull request
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@ -0,0 +1,43 @@
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# _*_ coding: utf-8 _*_
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"""
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python_csv.py by xianhu
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"""
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import csv
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import datetime
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# 数据
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data = [
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[1, "a,bc", 19.353, datetime.datetime(2001, 3, 17)],
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[2, "ei,f", 13.287, datetime.datetime(2011, 4, 27)],
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[3, "q\"ij", 15.852, datetime.datetime(2003, 7, 14)],
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[4, "zh'n", 11.937, datetime.datetime(2012, 1, 9)],
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[5, "i\'op", 12.057, datetime.datetime(2009, 5, 18)],
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]
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# 写文件
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with open("test.csv", "w") as file:
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writer = csv.writer(file, dialect="excel")
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# writer.writerows(data)
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for item in data:
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writer.writerow(item)
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# 读文件
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with open("test.csv", "r") as file:
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reader = csv.reader(file, dialect="excel")
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for item in reader:
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print(item)
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# 读文件
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with open("test.csv", "r") as file:
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reader = csv.DictReader(file, fieldnames=["id", "name", "float", "datetime"], dialect="excel")
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data = [item for item in reader]
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print(data)
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# 写文件
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with open("test.csv", "w") as file:
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writer = csv.DictWriter(file, fieldnames=["id", "name", "float", "datetime"], dialect="excel")
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writer.writeheader()
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for item in data:
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writer.writerow(item)
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