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# TXT文件
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# 普通方式
# 写入“Hello World！”
file1 = open('f1.txt','w',encoding='utf-8')
file1.write('Hello world!')
file1.close()
print('写完fi.txt。')
# 读取f1.txt文件并打印
file1 = open('f1.txt','r',encoding='utf-8')
filecontent = file1.read()
file1.close()
print(filecontent)
print('读完fi.txt。')
# with关键字
# 写入“Hello World！”
with open('f1.txt','w',encoding='utf-8') as file1:
file1.write('Hello World！')
print('写完fi.txt。')
# 读取f1.txt文件并打印
with open('f1.txt','r',encoding='utf-8') as file1:
filecontent = file1.read()
print(filecontent)
print('读完fi.txt。')
#################################################################
# 图片文件
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# 仅用with关键字读写示例
with open('python-logo.png','rb') as file1:
filecontent = file1.read()
print("读完python-logo.png。")
with open('pythonlogo.jpg','wb') as file1:
file1.write(filecontent) # 将上面读取的二进制编码写入
print("写完python-logo.png。")
#################################################################
# 音频文件
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# 仅用with关键字读写示例
with open('夜晚虫鸣.wav','rb') as file1:
filecontent = file1.read()
print("读完夜晚虫鸣.wav。")
with open('夜晚虫鸣.mp3','wb') as file1:
file1.write(filecontent) # 将上面读取的二进制编码写入
print("写完夜晚虫鸣.wav。")
#################################################################
# 视频文件
#################################################################
# 仅用with关键字读写示例
with open('01.ts','rb') as file1:
filecontent_01 = file1.read()
print("读完01.ts。")
with open('02.ts','rb') as file1:
filecontent_02 = file1.read()
print("读完02.ts。")
with open('union.mp4','wb') as file1:
file1.write(filecontent_01)
file1.write(filecontent_02)
print("写完union.mp4。")
#################################################################
# CSV文件
#################################################################
with open('test_csv.csv','r',encoding='utf-8') as file1:
filecontent = file1.read()
print("读完test_csv.csv。")
with open('test_csv_write.csv','w',encoding='utf-8') as file1:
file1.write(filecontent)
print("写完test_csv.csv。")
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# csv文件处理
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with open('test_csv.csv','r',encoding='utf-8') as file1:
filecontent = file1.read()
print("读完")
# print(filecontent)
datas_str = filecontent.split('\n')[:-1] # 按行分割，返回列表，分割完切掉最后的空字符串
datas_list = []
datas_dict = {}
for row in datas_str: # 遍历读取行，每行的数值通过逗号隔开
row_list = row.split(',') # 将每行数据按逗号切割，返回列表
datas_list.append(row_list) # 将切分后的行列表添加到列表
for i in range(len(datas_list[0])):
col = [ls[i] for ls in datas_list]
datas_dict[col[0]] = col[1:] # 将列名和列值按字典格式存储
print(datas_list[0]) # 表头
print(datas_list[1:]) # 表值
print(datas_dict) # 列名:列值
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