字符串

表示 ‘ ’ “ ”
name='Jeff'
print(name)
访问
print(name[2])
修改
name[1]='x'
print(name)
name='kobe'
print(name)

常用操作

price='￥9.9'

字符串替换

price=price.replace("￥","")

价格上涨十倍

pricenew=float(price)*10
 print(pricenew)

写一个价值一亿的AI代码

 while True:
set=input('')
set= set.replace("么?","!")
print(set)

strip去空格操作

name='      nenudu    '
print(len(name))
name=name.strip()
print(len(name))

join把列表编程字符串

li=['你','好','帅']
disk_pash=['C:','Users','12442','Desktop','MVC实训']
path='\\'.join(disk_pash)
print(path)
li=''.join(li)
print(li)