f+{}/format引用语法

 

 引用语法：

如

a ='aaaaa'
b =f'bbbbb{a}'
print(b)
或
a ='aaaaa'
b ='bbbbb{}'
print(b.format(a))

a ='aaaaa'
b ='bbbbb'
c ='cccccc{x}{y}'
print(c.format(x=a,y=b))