格式化输出

格式化输出

age=input('age :>>>')
print('my age is'+age)

age :>>> 22


my age is22

age=input('age :>>>')
print('my age is '+age)

age :>>> 22


my age is 22

age=input('age :>>>')
print('my age is',age)

age :>>> 22


my age is 22

name=input('name:>>>')

age=input('age :>>>')

print('my age is',age,',my name is',name)

name:>>> xy
age :>>> 12


my age is 12 ,my name is xy

占位符

name=input('name:>>>')

age=input('age :>>>')

print('my age is %s, my name is %s'%(age, name))

name:>>> xy
age :>>> 12


my age is 12, my name is xy

name=input('name:>>>')

age=input('age :>>>')

print('my age is %d, my name is %d'%(age, name))

name:>>> 1
age :>>> 1



---------------------------------------------------------------------------

TypeError                                 Traceback (most recent call last)

Cell In[12], line 5
      1 name=input('name:>>>')
      3 age=input('age :>>>')
----> 5 print('my age is %d, my name is %d'%(age, name))


TypeError: %d format: a real number is required, not str

name=input('name:>>>')
name=int(name)
age=input('age :>>>')
age=int(age)
print('my age is %d, my name is %d'%(age, name))#%d强制int

name:>>> 1
age :>>> 1


my age is 1, my name is 1

f-string格式化

name=input('name:>>>')

age=input('age :>>>')

#print('my age is %d, my name is %d'%(age, name))
#print('my age is {}, my name is {}'，format(age, name))#两个落后的方法
print(f'my age is {age},my name is {name}')

name:>>> XY
age :>>> 11


my age is 11,my name is XY

print(f'my age is {int(age)+1},my name is {name}')

my age is 12,my name is XY

用这个方法最简便。

print(f'my age is {int(age)+1},my name is{"xy"}')

my age is 12,my name isxy