python实训day1
作者：互联网
作业：
# （1）移除name变量对应的值两边的空格
name =" aleX"
print(name.strip())
# （2）判断name变量对应的值是否以"al"开头，并输出结果
# 此时是以空格为开头
print(name.startswith("al"))
# （3）判断name变量对应的值是否以"x"结尾，并输出结果
print(name.endswith("X"))
# （4）将name变量对应的值中的"1"替换为"p",并输出结果
name=name.replace("l","p")
print(name)
# （5）将name变量对应的值根据"1"分割，并输出结果
list=name.split('l')
print(list)
list1=name.split('p')
print(list1)
# （6）将name变量对应的值变大写，并输出结果
print(name.upper())
# （7）将name变量对应的值变小写，并输出结果
print(name.lower())
# （8）请输出name变量对应的值的第2个字符
print(name[2])
# （9）请输出name变量对应的值的前3个字符
print(name[0:4])
# （10）请输出name变量对应的值的后2个字符
print(name[2:4])
# （11）请输出name变量对应的值的"e"所在的索引的位置
print(name.find('e'))
# （12）获取子序列，去掉最后一个字符，如oldboy则获取oldbo
print(name[0:len(name)-1])
总结：
# 数字类型
# 整型int
# number = 100 # int(100)
# number2 = int(100)
# print(number)
# print(number2)
# 浮点型 float
# sal = 15.0 # float(15.0)
# sal2 = float(15.0)
# print(sal)
# print(sal2)
# 字符串类型
# name = 'tank'
# name2 = "tank"
# content = '''
# 1r1r1r
# 21r12r1
# r12r
# 12r1r21
# r12r1r2
# 12r1r
# '''
#
# print(name, name2, content)
# python中字符串可以相加、相乘
# print('tank ' * 5)
# print('tank' + 'jam')
# print('tank', 'jam')
# 列表类型
# []括号内以逗号隔开，可存放多个不同类型的值。
# list1 = ['张曼曼', 'tank', '涂懿磊', 11, 1.0, ['jason', 200]]
# print(list1[0])
# print(list1[5][0])
# 字典类型
# 在{}内，都逗号隔开，可存放多个值，每个值以key: value的形式存储
# 存
# dict1 = {'name': "tank", "age": 18} # {name="tank", "age"=18}
# 取
# print(dict1["name"])
# 布尔类型
# True or False
# print(10 == 10) # True
# print(10 == 11) # False
# 注意: 所有数据类型都自带布尔， 0、None、空都为False
# if 0:
# print('111')
#
# if None:
# print('111')
#
# if []:
# print('111')
#
# else:
# print('222')
# 格式化输出
# 可以在输出时给字符串类型做一次替换
# %s占位符，%d可以替换数字类型
# number = input('请输入:')
# str1 = '''
# 尊敬的用户，您的话费余额为%s元。
# ''' % number
#
# print(str1)
# for循环
# list1 = [1, 2, 3, 4, 5]
# for line in list1:
# print(line)
# for line in range(1, 10):
# print(line)
# dict1 = {'name': "tank", "age": 18}
# for key in dict1:
# print(key)
# print(dict1[key])
# '''
# str1='my name is xxx,my age is 18'
# #祛除左右空格strip
# print(str1)
# print(str1.strip())
# #切分split
# list2=str1.split(' ')
# print(list2)
# str2='my name is xxx,my age is 18'
# for line in str2:
# print(line,end=" ")
# str6 = 'my name in Tank'
# print(str6.lower())
# print(str6.upper())#lower 小写 upper 大写
# print(str6.startswith('my')) #startswith 判断前面 endswith 判断后面
# print(str6.startswith('My'))
# print(str6.endswith('tank'))
# #fomat 三种玩法
# str7 = 'my name in {}，my age is{}'
# str7=str7.format('tank',18)
# print(str7)
#
# str7='my name in {1}，my age is{2}'
# str7=str7.format('tank',18,111)
# print(str7)
#
# str7='my name in {name}，my age is{age}'
# str7=str7.format(name='tank',age=18)
# print(str7)
# '''
# # join 对列表中的数据按照某种标识拼接 拼接要为字符串类型
# name ='tank'
# age='20'
# print(':'.join([name,age]))
# #replace
# str8 ='old new'
# str8=str8.replace('old','new')
# print(str8)
# #isdigit 判断字符串是否为数字
# ID =input('请输入')
# print(ID)
# print(ID.isdigit())
list1=['tank',18,'womale',3.0,9]
print(list1[4])
print(list1[-2])
# '''
# str1='my name is xxx,my age is 18'
# #祛除左右空格strip
# print(str1)
# print(str1.strip())
# #切分split
# list2=str1.split(' ')
# print(list2)
# str2='my name is xxx,my age is 18'
# for line in str2:
# print(line,end=" ")
# str6 = 'my name in Tank'
# print(str6.lower())
# print(str6.upper())#lower 小写 upper 大写
# print(str6.startswith('my')) #startswith 判断前面 endswith 判断后面
# print(str6.startswith('My'))
# print(str6.endswith('tank'))
# #fomat 三种玩法
# str7 = 'my name in {}，my age is{}'
# str7=str7.format('tank',18)
# print(str7)
#
# str7='my name in {1}，my age is{2}'
# str7=str7.format('tank',18,111)
# print(str7)
#
# str7='my name in {name}，my age is{age}'
# str7=str7.format(name='tank',age=18)
# print(str7)
# '''
# # join 对列表中的数据按照某种标识拼接 拼接要为字符串类型
# name ='tank'
# age='20'
# print(':'.join([name,age]))
# #replace
# str8 ='old new'
# str8=str8.replace('old','new')
# print(str8)
# #isdigit 判断字符串是否为数字
# ID =input('请输入')
# print(ID)
# print(ID.isdigit())
list1=['tank',18,'womale',3.0,9]
print(list1[4])
print(list1[-2])
print(list1[1:5:2])
print(len(list1))
#追加 append()
list1.append('sjkd')
print(list1)
#删除 pop()默认最后一个-1
print(list1.pop())
print(list1.pop(0))
print(list1)
list1.
#循环
标签：tank,name,python,list1,str7,day1,实训,print,my 来源： https://www.cnblogs.com/wangtianen/p/11006783.html