python基础--文件操作

'''
UnicodeDecodeError: 'gbk' codec can't decode byte 0x80 in position 106: illegal multibyte sequence
encoding="utf-8"
windows默认是使用gbk

'''
#data=open("chaochao",encoding="utf-8").read()
'''
f=open("chaochao",'r',encoding="utf-8")  #赋值给f文件句柄：包含文件名、字符集、大小、和在内存中的位置   只读
d=open("chaochao",'w',encoding="utf-8")  #赋值给f文件句柄：包含文件名、字符集、大小、和在内存中的位置   只新写（覆盖）
e=open("baobao",'a',encoding="utf-8")  #赋值给f文件句柄：包含文件名、字符集、大小、和在内存中的位置     追加


data=f.read()
data2=f.read()

print(data)
print("------------>data-------------------------------------------------%s-------" %data2)

print(data)
d.write("我爱北京天安门，我爱宝宝,\n")
e.write("河南人在上海")
f.close()
d.close()
e.close()
'''
# #high
# f=open("chaochao",'r',encoding="utf-8")
# count=0
# i=0
# print(f.tell())  # tell按照字符计数
# f.seek(140)
# print(f.readline())
# print(f.tell())  # tell按照字符计数
# print(f.readline())
# print(f.tell())  # tell按照字符计数
# print(f.encoding)  #打印文件编码
# print(f.fileno()) #返回句柄在文件系统中的编号
# #   *able是判断是否可以操作对应的功能
# print(f.flush()) #默认缓存达到指定大小写入内存  强制写入内存


#
# for line in f:   #打印内存是保存一行    将文本转换被计数器
#     if count==9 :
#         i += 1
#         continue
#
#     print(i,line.strip())
#     count += 1

#low loop
'''
f=open("chaochao",'r',encoding="utf-8")
#for line in f.readlines():
for index,line in enumerate(f.readlines()):
    if index == 9:     #跳打第十行
        print("---------------我是分割线--------------------")
        continue
    print(line.strip())  #strip  是去掉换行，和空格
# for i in range(5):
#     print(f.readline())



'''

#f=open("chaochao",'r+',encoding="utf-8")  #追加方式打开   读写
#f=open("chaochao",'w+',encoding="utf-8")  #追加方式打开   读写
# f=open("chaochao",'rb')  #以二进制形式打开
#
# print(f.readline())
# print(f.readline())
# print(f.readline())
# print("-----------------------------------woshifengexian-------------")
# print(f.readline())
# print(f.tell())  #打印光标
# #f.write("heheheheehehehehehehehehehehe--------------------------------")
# print(f.readline())
# 
# f=open("chaochao",'r',encoding="utf-8")
# f_new=open("chaochao11111",'',encoding="utf-8")
# 
# for line in f:
#      if "hehhehehe" ==line :
#          line = line.replace("hehhehehe","woshi wanyachao")
#      f_new.write(line)
# f.close()
# print(f_new)
# f_new.close()
# with open("chaochao",'r',encoding="utf-8")as f,\     可以同时打开多个文件
#        open("chaochao", 'r', encoding="utf-8")as d:
#     for line in f:
#         if 
#