python第一天第二天
#1.Python中的输出语句#print("hello world")#print()函数是python的默认输出语句
#name="hello world"
#print(name)
#2.Python格式化输出
#%s：字符串
#name="xian02"
#print("%s is number one"%name)
#%c：单个字符
#name="x"
#print("world is %c"%name)
#%d：十进制整数
#num=12
#print("number is %d"%num)
#%i：十进制整数
#num=12
#print("number is %i"%num)
#%o：八进制整数
#num=12
#print("number is %o"%num)#14
#%x：十六进制整数
#num=12
#print("number is %x"%num)#c
#%f：浮点数
#num=12
#print("number is %f"%num)#12.000000,默认小数点后6位
#%%：字符"%" 12%
#num=12
#print("number is %d%%"%num)#number is 12%
#list1=
#for a in list1:
# print("%d is in list"%a)
#str1="dcs"
#num=2
#print("%s%d is number one"%(str1,num))
'''
name="xiaozhang"
name1="xiaomen"
user_name="admin"
user_name_1="admin1"
Name="xiaolin"
str()
'''
'''
phone_num= input("请输入手机号码")
if phone_num == "18829264385":
print("您输入的号码正确")
else:
print("您输入的号码有误")
print(type(phone_num))
'''
#name="hello world"
#print(name)
#name="cocacola"
#print("%s is the best"%name)
#a=9
#b=5
#c=5
#print(a>b) #True
#print(a<c) #False
#print(b>=c) #True
#print(b<=c) #True
#print(b==c) #True
#print(b!=c) #False
#print(a!=c) #True
'''
a=9
b=5
c=5
print(a>b and a>c)
print(a>b and a<c)
print(a>b or a<c)
print(not a>c)
print(not b==c)
print(not b!=c)
#True
False
True
False
False
True
'''
# list1=["yilia","cherry",110,115]
#print(110 not in list1)
#print("110" not in list1)
#print("yilia" not in list1)
#if "mike" in list1:
# print("测试通过")
#else:
#print("测试失败")
#if "mike" in list1:
#print("ok")
#else:
# list1.append("mike")
# print(list1)
"""
位运算符0000 0 0 0 0
128 64 32 16 8 4 2 1
"""
"""
a=8
b=24
a=8==>二进制00001000
b=24==>二进制00011000
"""
#print(a&b)#8
#00001000
#print(a|b)#24
#00011000
#print(a^b)#16
#00010000
#print(~a)#-9
#00001000
#--------
#11110111
#print(~b)#-25
#00011000
#--------
#11100111
#print(a<<2)#32
#00100000
#print(b<<2)#96
#01100000
#print(a>>2)#2
#00000010
#print(b>>2)#6
#00000110
"""
a=5
b=9
00000101==>a转换成2进制00001001==>b转换成2进制"""
str1="woshixiaoyaoguai"
#print(str1)#woshi
#print(str1[:5])#woshi
#print(str1)#oshixiaoyaoguai
#print(str1)#结果为空
#print(str1)#xihso
#print(str1[:5:-1])#iaugoayoai
#print(str1)#xihsow
#print(str1[::])#woshixiaoyaoguai
#print(str1[::-1])#iaugoayoaixihsow
#print(str1[-7:-3])#yaog
#print(str1[-7:-3:-1])#结果为空
#print(str1[-5:7])
#print(str1[-2:-5:-1])#aug
#print(str1)#wsi
#print(str1[:6:2])#wsi
#print(str1)#woshixiaoyaoguai
#str1="hello world"
#print(str1.capitalize())
#print(str1.title())
#print(str1.count("l"))
#print("~".join(str1))
#list1=["hello","world"]
#print("".join(list1))
#print(type("".join(list1)))
#print(str1.split(" "))
#list1 = str1.split(" ")
#print(list1)
#print(list1)
#print(type(str.split(" ")))
#print(str1.split("o"))
#str1="user_name"
#str2=str1.title()#User_Name
#list1=str2.split("_")#['User', 'Name']
#1\print("".join(list1))
#2\print(list1+list1)
#str2="".join(str1.title().split("_"))
#print(str2)
#str1="duoceshiodu"
#print(str1.strip("du"))
#print(str1.strip("d"))
#print(str1.strip("u"))
#print(str1.strip("ud"))
#str1="duoceshioud"
#print(str1.lstrip("du"))
#print(str1.lstrip("ud"))
#print(str1.lstrip(dou))
#print(str1.rstrip("duo"))
#print(str1.rstrip("u"))
#print(str1.startswith("duo"))
#print(str1.startswith("uod"))
#print(str1.endswith("oud"))
"""
file_name=input("请输入您需要上传的文件名称")
if file_name.endswith(".txt"):
print("文件有效")
else:
print("文件无效")
"""
#str1="duoceoshioud"
#print(str1.find("c"))
#print(str1.find("o"))
#print(str1.rfind("o"))
#print(str1.find("o",3))
#str1="meilixinshijie"
#print(str1.replace("i","a"))
#print(str1.replace("i","a",2))
#print(str1.upper())
#rint(str1.lower())
#str1="123456"
#print(str1.isdigit())
#str1="xiaoddkfj"
#print(str1.isalpha())
#str1="slkflsakjla"
#print(str1.isalnum())
#str1="Xiao Lin"
#print(str1.istitle())
#str1="XIAOLIN"
#print(str1.isupper())
#print(str1.islower())
#list1=list(str1)
#print(list1)#['x', 'i', 'a', 'n', '0', '2']
#print(type(list1))#<class 'list'>
#list1=["dcs","xian02","xiaolin",10086]
#list1="hello"
#print(list1)#['h', 'e', 'l', 'l', 'o', 'xiaolin', 10086]
list1=["dcs","xian02","xiaolin",10086]
#list1.append("xiaomei")
#print(list1)#['dcs', 'xian02', 'xiaolin', 10086, 'xiaomei']
#list1.append(10010)
#print(list1)#['dcs', 'xian02', 'xiaolin', 10086, 10010]
#list1.append(["xiaoli","xiaoying"])
#print(list1)#['dcs', 'xian02', 'xiaolin', 10086, ['xiaoli', 'xiaoying']]
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