a='I '
b='like '
c='python'
print(a+b+c)
s=' sdghHhf '
s1=s.strip()
print(s1)
s2=s1.upper()
s3=s1.lower()
print(s2,s3)
s4=s1.find('h')
print(s4)
x='I {} python'
x1=x.format('like')
x2=x.replace('{}','like')
print(x1)
print(x2)
capital='人民币100万元'
print(len(capital))
print(capital.isdigit())
