python变量,输入,打印

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# Author:hjl
name = "hjl"
print("my name is" , name)
print("你")

name = input("name:")
age = input("age")
age_d = int(age)
print("age:",type(age),"age_d:",type(age_d))

info = ''' info
name:%s        用占位符%%和%%()
age: %d
'''%(name,age_d) # 用占位符%和%()
print(info)

info2 = ''' info2
name:{_a}
age: {_b}
'''.format(_a=name, _b=age)  # 用大括号{}和format()
print(info2)