name = "adam"
v = name.capitalize()	#name內(nèi)的字符串首字母大寫
print(type(v),v)

name = "aDam"
v = name.casefold()	#name內(nèi)的字符串變成小寫（它可以處理不同的語(yǔ)種內(nèi)的字母大小寫）
print(type(v),v)
name = "aDam"
v2 = name.lower()	#name內(nèi)的字符串變成小寫（它只能處理英文）
print(type(v2),v2)

name = "adam"
v = name.center(25,"+")		#在name賦值的字符串的前后各增加加號(hào) ，使得整體字符串占一共有8個(gè)字符之前name的賦值字符串劇中，并且賦值給v
print(type(v),v)

name = "adam"
v = name.count('a',2,4) #計(jì)算a在name賦值的字符串內(nèi) 出現(xiàn)過(guò)多少次,不寫（，2，4）的話默認(rèn)是沖頭到位找，寫了就是從地2到4位尋找
print (v)

name = "adam"
v = name.endswith('d',1,2) #判斷 name賦值的字符串 從第一個(gè)字符到第二個(gè)字符結(jié)束 結(jié)尾的字母是不是d
v1 = name.startswith('a',0,2)#判斷name賦值的字符串，從第0位到第2位 是不是以 字母a開頭
print (v)
print (v1)

test = '12345\t6789'
v = test.expandtabs(8)
v1 = test.expandtabs(3)
v2 = test.expandtabs(5)
print(v)
print(v1)
print(v2)
#應(yīng)用實(shí)例：
test = '姓名\t性別\t身高\(yùn)n張三\t男\(zhòng)t180\n張三\t男\(zhòng)t180\n張三\t男\(zhòng)t180'
v = test.expandtabs(10)
print(v)

name = "adamadamadam"	#創(chuàng)建變量name并賦值adamadamadam
v = name.find('ma',6,9) 	#設(shè)定搜索ma子序列從6到8位
print (v)	#顯示v的值
#結(jié)果為：7

name = "adam"	#創(chuàng)建變量name并賦值為adam
xingBie = "男"	#創(chuàng)建變量xingBie并賦值為"男"
xianShi = "I am {name1},{xingBie1}" 	#創(chuàng)建變量xianShi并賦值為"I am {name1},{xingBie1}" 
print(xianShi)	#顯示xianShi
#結(jié)果：I am {name1},{xingBie1}
v = xianShi.format(name1 = name ,xingBie1 = xingBie) #使用變量name和xingBie替換xianShi變量中的name1和xingBie1，并且賦值給v
print(v)	#顯示v
#結(jié)果：I am adam,男

name = "adam"	#創(chuàng)建變量name并賦值為adam
xingBie = "男"	#創(chuàng)建變量xingBie并賦值為"男"
xianShi = "I am {0},{1}" #創(chuàng)建變量xianShi并賦值為"I am {0},{1}"
print(xianShi)	#顯示xianShi
#結(jié)果：I am {0},{1}
v1 = xianShi.format(name ,xingBie) #使用變量name 和 xingBie的值替換xianShi中的 0 和 1的值，并且賦值給v1
print(v1) #顯示v1
#結(jié)果：I am adam,男

name = "adam"	#創(chuàng)建變量name并賦值為adam
xingBie = "男"	#創(chuàng)建變量xingBie并賦值為"男"
xianShi = "I am {name1},{xingBie1}" 	#創(chuàng)建變量xianShi并賦值為"I am {name1},{xingBie1}" 
print(xianShi)	#顯示xianShi
v = xianShi.format(name1 = name ,xingBie1 = xingBie) #使用變量name和xingBie替換xianShi變量中的name1和xingBie1，并且賦值給v
print(v)	#顯示v
#結(jié)果：I am adam,男
v1 = xianShi.format_map({'name1':name,'xingBie1':xingBie})	#使用format_map的格式給v1賦值
print(v1)	#顯示v1
#結(jié)果：I am adam,男

name = 'adam123'   #給變量name賦值adam
name1 = 'adam+'   #給name1賦值adam+
name2 = 'adam'
name3 = '123'
v = name.isalnum()   #判斷name中是否只含有字母或數(shù)字，并把布爾值賦值給v
v1 = name1.isalnum()    #判斷name1中是否只含有字母或數(shù)字，并把布爾值賦值給v1
v2 = name2.isalnum()
v3 = name3.isalnum()
print(v)
print(v1)
print(v2)
print(v3)

name = 'adam123'   #給變量name賦值adam123
name1 = 'adam+'   #給name1賦值adam+
name2 = 'adam'   #給name2賦值adam
name3 = '張三'    #給name3賦值張三
v = name.isalpha()
v1 = name1.isalpha()
v2 = name2.isalpha()
v3 = name3.isalpha()
print(v)
print(v1)
print(v2)
print(v3)

test1 =  '123'  #賦值
test2 = '1a'    #這個(gè)也可以是16進(jìn)制數(shù)
test3 = '②'    #符號(hào)數(shù)字 ②
test4 = 'Ⅲ' #羅馬數(shù)字3,這是一個(gè)字符
test5 = '四'    #漢字?jǐn)?shù)字四
vecimal1 = test1.isdecimal()    #判斷字符串是否為數(shù)字
vecimal2 = test2.isdecimal()
vecimal3 = test3.isdecimal()
vecimal4 = test4.isdecimal()
vecimal5 = test5.isdecimal()
vigit1 = test1.isdigit()    #判斷字符串是否為數(shù)字
vigit2 = test2.isdigit()
vigit3 = test3.isdigit()
vigit4 = test4.isdigit()
vigit5 = test5.isdigit()
vnumeric1 = test1.isnumeric()
vnumeric2 = test2.isnumeric()
vnumeric3 = test3.isnumeric()
vnumeric4 = test4.isnumeric()
vnumeric5 = test5.isnumeric()
print(vecimal1, vecimal2, vecimal3, vecimal4, vecimal5)  #打印isdecimal判斷的結(jié)果
print(vigit1, vigit2, vigit3, vigit4, vigit5)  #打印isdigit判斷的結(jié)果
print(vnumeric1, vnumeric2, vnumeric3, vnumeric4, vnumeric5)

print( "if".isidentifier() )
print( "def".isidentifier() )
print( "class".isidentifier() )
print( "_a".isidentifier() )
print( "中國(guó)123a".isidentifier() )
print( "123".isidentifier() )
print( "3a".isidentifier() )
print( "".isidentifier() )

name = 'Adam'
name1 = 'ADAM'
name2 = 'adaM'
name3 = 'aDam'
v = name.islower()
v1 = name1.islower()
v2 = name2.islower()
v3 = name3.islower()
print('Adam',v,'ADAM',v1,'adaM',v2,'aDam',v3)
x = name.lower()
x1 = name1.lower()
x2 = name2.lower()
x3 = name3.lower()
print('Adam',x,'ADAM',x1,'adaM',x2,'aDam',x3)
n = name.isupper()
n1 = name1.isupper()
n2 = name2.isupper()
n3 = name3.isupper()
print('Adam',n,'ADAM',n1,'adaM',n2,'aDam',n3)
k = name.upper()
k1 = name1.upper()
k2 = name2.upper()
k3 = name3.upper()
print('Adam',k,'ADAM',k1,'adaM',k2,'aDam',k3)

print('\tabc'.isprintable())
print('abc\n'.isprintable())
print('\tabc\n'.isprintable())
print('abc'.isprintable())

test = '  '
test1 = '  a'
test2 = ' a '
test3 = ''
v = test.isspace()
v1 = test1.isspace()
v2 = test2.isspace()
v3 = test3.isspace()
print(v,v1,v2,v3)    #True False False False

test = 'wo shi zhang san , wo ba sui le '
v = test.istitle()
print(v)    #False
v1 = test.title()
print(v1)    #Wo Shi Zhang San , Wo Ba Sui Le 
v2 = v1.istitle()
print(v2)    #True

test = '我是張三，我八歲了'
test1 = '我'
print(test) #我是張三，我八歲了
x = ' '
v = x.join(test)
print(v)    #我 是 張 三 ， 我 八 歲 了
v1 = x.join(test1)
print(v1)    #我

name = 'adam'
v = name.ljust(6,'*') #文字左對(duì)齊 不至6位用*補(bǔ)位
v1 = name.rjust(6,'*') #文字右對(duì)齊 不至6位用*補(bǔ)位
v2 = name.center(6,'*')  #文字劇中 不至6位用*補(bǔ)位
v3 = name.zfill(6)    #文字右對(duì)齊 不至6位用*補(bǔ)位
print(v,v1,v2,v3)  #adam** **adam *adam* 00adam

name = ' ad am '
v = name.lstrip()     #去掉左側(cè)的空格直到遇到其他字符
v1 = name.rstrip()    #去掉右側(cè)的空格直到遇到其他字符
v2 = name.strip()     #去掉兩側(cè)的空格直到遇到其他字符
print(v)    #ad am 
print(v1)   # ad am
print(v2)   #ad am

yuanZiFu = 'abcde'	#定義原始匹配字符
bianGengZiFu = '12345'	#定義匹配后變更的字符	
shanChuZiFu = 'fghij'  #定義原始匹配刪除的字符
zhuanHuanBiao = str.maketrans(yuanZiFu,bianGengZiFu)	#創(chuàng)建字符映射轉(zhuǎn)換表（匹配yuanZiFu轉(zhuǎn)換成bianGengZiFu）
zhuanHuanShanChuBiao = str.maketrans(yuanZiFu,bianGengZiFu,shanChuZiFu)	#創(chuàng)建字符映射轉(zhuǎn)換刪除表（匹配yuanZiFu轉(zhuǎn)換成bianGengZiFu刪除shanChuZiFu）
yuanShiZiFuChuan = 'a1b2c3d4e5fagbhcidje' 	#創(chuàng)建原始字符串
print(yuanShiZiFuChuan.translate(zhuanHuanBiao))    #1122334455f1g2h3i4j5
print(yuanShiZiFuChuan.translate(zhuanHuanShanChuBiao))    #112233445512345

x1 = '123\n45\t123\n45\t123\n45\t123\n45'
print(x1.partition('5'))    #('123\n4', '5', '\t123\n45\t123\n45\t123\n45')
print(x1.rpartition('5'))   #('123\n45\t123\n45\t123\n45\t123\n4', '5', '')
print(x1.split('\n',3))   #['123', '45\t123', '45\t123', '45\t123\n45']
print(x1.rsplit('\t',2))  #['123\n45\t123\n45', '123\n45', '123\n45']
print(x1.splitlines())  #['123', '45\t123', '45\t123', '45\t123', '45']
print(x1.splitlines(True))  #['123\n', '45\t123\n', '45\t123\n', '45\t123\n', '45']
print(x1.splitlines(False)) #['123', '45\t123', '45\t123', '45\t123', '45']

name = 'Adam'
v = name.swapcase()
print(v)    #aDAM

name = 'adamadamadam'
v = name.replace('da','yyy')
print(v)    #ayyymayyymayyym