字符串

Posted 2020-11-23 qwer-123

 

#全大写，全小写
s="1,fff,zc,33"
s1=s.upper()
s2=s.lower()
print(s1,s2)
"""
s3="sdbi"
s4=input("输入验证码,不区分大小写")
if s3.upper()==s4.upper():
    print("验证通过")
else:
    print("重试")"""

#首字母大写
s5="vds"
s6=s5.capitalize()
print(s6)

#大小写反转
s7="csbUJ"
s8=s7.swapcase()
print(s8)

#每个隔开的（特殊字符或数字）的单词首字母大写
s9="abh ji$ nn55jbk"
s10=s9.title()
print(s10)
#居中，空白填充
s11="sna"
s12=s11.center(12,"f")
print(s12)

#公共方法
s13="sdvsgz651"
s14=len(s13)
print(s14)

#以什么开头结尾
s15="sc645"
s16=s15.startswith("c",2,3)
print(s16)

if s16:
    pass
elif s15.startswith("lk"):
    pass

#通过元素找索引,找不到返回-1
s17="csscc55"
s18=s17.find("9")
print(s18,type(s18))
"""
#通过元素找索引，找不到报错
s19="scaa44"
s20=s19.index("5")
print(s20)"""

#默认删除前后空格
s21="   gh%$  njk "
s22=s21.strip("%")
print(s22)
"""
s23=input("输入").strip()
if s23=="你好":
    print("恭喜")"""
#字符串拆分列表
s24="svcds55"
s25=s24.split("c")
print(s25)

#format 格式化输出
s26="my name is {},my age is {},my hobby is {}".format("xie",22,"girl")
print(s26)
s27="my name is {0},my age is {1},my hobby is {2}".format("xie",22,"girl")
print(s27)
s28="my name is {name},my age is {age},my hobby is {hobby}".format(age=22,name="xie",hobby="girl")
print(s28)
name=input("输入名字")
s29="my name is {name},my age is {age},my hobby is {hobby}".format(age=22,name=name,hobby="girl")
print(s29)
#replace
s30="哈哈哈，我笑了"
s31=s30.replace("哈","呵",1)
print(s31)
#for循环
s="sdxa555"
for i in s:
    print(i)
if "d" in s:
    print("好")
#bit_length
i=100
j=i.bit_length()
print(j)
#
s=bool("")
print(s)
s31=bool("  ")
print(s31)
#
s
if s:
    print("空")
else:
    pass
#
s32="asc545"
s33=s32[1]+s32[3]
print(s33)
#
s34="asc455"
for i in s34:
    print(i)

s34="asc455"
index=0
while 1:
    print(s34[index])
    index+=1
    if index==len(s34):
        break
#如content=input("输入内容")，如用户输入5+9，5 +9，然后进行分割再进行运算
content=input("输入内容").strip()
con1=content.split("+")
num=0
for i in con1:
    num+=int(i)
    print(num)


content=input("输入内容").strip()
index=content.find("+")
a=int(content[0:index])
b=int(content[index+1:])
print(a+b)
#
count=0
s=input("输入")
for i in s:
    if i.isdigit():
        count+=1
print(count)