Python_文件相关操作

stream = open(‘E:/projects/Python/test/fileopen.txt‘,‘r‘) #读取

print(‘打印一下原文件中的内容.....‘)
for line in stream:
    print(line.strip()) #strip()方法可以去除结尾的换行符
stream.close()

stream = open(‘E:/projects/Python/test/fileopen.txt‘,‘w‘) #写入,写入参数为w时，写入会覆盖原有内容
stream.write(‘Lucky：11个\n‘)
stream.close()

print(‘打印一下使用w写入后的文件内容.....‘)
stream = open(‘E:/projects/Python/test/fileopen.txt‘,‘r‘) #读取
for line in stream:
    print(line.strip()) #strip()方法可以去除结尾的换行符
stream.close()

stream = open(‘E:/projects/Python/test/fileopen.txt‘,‘a‘) #写入,写入参数为a时，写入不会覆盖原有内容，而是追加写入
stream.write(‘Baby：11个\n‘)
stream.close()

print(‘打印一下使用a写入后的文件内容.....‘)
stream = open(‘E:/projects/Python/test/fileopen.txt‘,‘r‘) #读取
for line in stream:
    print(line.strip()) #strip()方法可以去除结尾的换行符
stream.close()