#!/usr/bin/env python
# -*- coding:utf-8 -*-
# 1.看代码写结果
'''
v1 = [1, 2, 3, 4, 5]
v2 = [v1, v1, v1]
v1.append(6) # 内部修改,都改变
print(v1) # [1, 2, 3, 4, 5,6]
print(v2) # v2 = [[1, 2, 3, 4, 5,6], [1, 2, 3, 4, 5,6], [1, 2, 3, 4, 5,6]]
'''
# 2.看代码写结果
'''
v1 = [1, 2, 3, 4, 5]
v2 = [v1, v1, v1]
v2[1][0] = 111 # 内部修改 v1 = [111, 2, 3, 4, 5]
v2[2][0] = 222 # 内部修改 v1 = [222, 2, 3, 4, 5]
print(v1) # v1 = [222, 2, 3, 4, 5]
print(v2) # v2 = [[222, 2, 3, 4, 5], [222, 2, 3, 4, 5], [222, 2, 3, 4, 5]]
'''
# 3.看代码写结果，并解释每一步的流程。
'''
v1 = [1,2,3,4,5,6,7,8,9]
v2 = {}
for item in v1:
if item < 6:
continue
if 'k1' in v2:
v2['k1'].append(item)
else:
v2['k1'] = [item] # v2 = {'k1':[6,7,8,9]}
print(v2)
'''
# 4.简述深浅拷贝？
'''
深拷贝:拷贝嵌套层次中的所有可变类型.
浅拷贝:只拷贝第一层.
'''
# 5.看代码写结果
'''
import copy
v1 = "alex"
v2 = copy.copy(v1) # 浅拷贝 v2 = v1,指向同一内存地址
v3 = copy.deepcopy(v1) # 深拷贝 v3 = v1
print(v1 is v2) # True
print(v1 is v3) # True
'''
# 6.看代码写结果
'''
import copy
v1 = [1, 2, 3, 4, 5]
v2 = copy.copy(v1) # v2 == v1
v3 = copy.deepcopy(v1) # v3 == v1
print(v1 is v2) # False
print(v1 is v3) # False
'''
# 7.看代码写结果
'''
import copy
v1 = [1, 2, 3, 4, 5]
v2 = copy.copy(v1)
v3 = copy.deepcopy(v1)
print(v1[0] is v2[0]) # True
print(v1[0] is v3[0]) # True
print(v2[0] is v3[0]) # True
'''
# 8.看代码写结果
'''
import copy
v1 = [1, 2, 3, 4, 5]
v2 = copy.copy(v1)
v3 = copy.deepcopy(v1)
print(v1[0] is v2[0]) # True
print(v1[0] is v3[0]) # True
print(v2[0] is v3[0]) # True
'''
# 9.看代码写结果
'''
import copy
v1 = [1, 2, 3, {"name": '武沛齐', "numbers": [7, 77, 88]}, 4, 5]
v2 = copy.copy(v1)
print(v1 is v2) # False
print(v1[0] is v2[0]) # True
print(v1[3] is v2[3]) # True
print(v1[3]['name'] is v2[3]['name']) # True
print(v1[3]['numbers'] is v2[3]['numbers']) # True
print(v1[3]['numbers'][1] is v2[3]['numbers'][1]) # True
'''
# 10.看代码写结果
'''
import copy
v1 = [1, 2, 3, {"name": '武沛齐', "numbers": [7, 77, 88]}, 4, 5]
v2 = copy.deepcopy(v1)
print(v1 is v2) # False
print(v1[0] is v2[0]) # True
print(v1[3] is v2[3]) # False
print(v1[3]['name'] is v2[3]['name']) # True
print(v1[3]['numbers'] is v2[3]['numbers']) # False
print(v1[3]['numbers'][1] is v2[3]['numbers'][1]) # True
'''
# 11.简述文件操作的打开模式
'''
r,只读模式,无文件报错.
w,只写模式,写入会先清空并覆盖原内容,无文件新建.
a,追加模式,无文件新建,在文件最后追加内容.
r+,读写模式,从光标位置读取,seek()定位光标,写入可能会覆盖原内容.
w+,写读模式,写入前先清空原内容,读取需要seek()定位光标.
a+,追加写读,根据光标位置读取,写入在最后.
'''
# 12.请将info中的值使用 "_" 拼接起来并写入到文件 "readme.txt" 文件中。
'''
info = ['骗子，','不是','说','只有','10','个题吗？']
s = '_'.join(info)
f = open('readme.txt',mode='w',encoding='utf-8')
f.write(s)
f.close()
'''
# 13.请将info中的值使用 "_" 拼接起来并写入到文件 "readme.txt" 文件中。
'''
info = ['骗子，','不是','说','只有',10,'个题吗？']
info[4] = str(info[4])
s = '_'.join(info)
f = open('readme.txt',mode='w',encoding='utf-8')
f.write(s)
f.close()
'''
# 14.请将info中的所有键 使用 "_" 拼接起来并写入到文件 "readme.txt" 文件中。
# info = {'name': '骗子', 'age': 18, 'gender': '性别'}
# 1. 请将info中的所有键 使用 "_" 拼接起来并写入到文件 "readme.txt" 文件中。
'''
s = '_'.join(info)
f = open('readme.txt',mode='w',encoding='utf-8')
f.write(s)
f.close()
'''
# 2. 请将info中的所有值 使用 "_" 拼接起来并写入到文件 "readme.txt" 文件中。
'''
lst = list(info.values())
lst[1] = str(lst[1])
s = '_'.join(lst)
f = open('readme.txt', mode='w', encoding='utf-8')
f.write(s)
f.close()
'''
# 3. 请将info中的所有键和值按照 "键|值,键|值,键|值" 拼接起来并写入到文件 "readme.txt" 文件中。
'''
info = {'name': '骗子', 'age': 18, 'gender': '性别'}
s = ''
info['age'] = str(info['age'])
for k,v in info.items():
a = k +'|' + v + ','
s += a
f = open('readme.txt',mode='w',encoding='utf-8')
f.write(s[0:-1])
f.close()
'''
# 15.写代码
# 要求：
# 如文件 data.txt 中有内容如下：
# wupeiqi|oldboy|wupeiqi@xx.com
# alex|oldboy|66s@xx.com
# xxxx|oldboy|yuy@xx.com
# 请用代码实现读入文件的内容，并构造成如下格式：
# info = [
# {'name':'wupeiqi','pwd':'oldboy','email':'wupeiqi@xx.com'},
# {'name':'alex','pwd':'oldboy','email':'66s@xx.com'},
# {'name':'xxxx','pwd':'oldboy','email':'yuy@xx.com'},
# ]
'''
info = []
f = open('data.txt',mode='r',encoding='utf-8')
for i in f.readlines():
dic = {}
new_i = i.strip()
new2_i = new_i.split('|')
dic['name'] = new2_i[0]
dic['pwd'] = new2_i[1]
dic['email'] = new2_i[2]
info.append(dic)
print(info)
f.close()
'''
