Python3 输出

1.打印字符串　　

print("My name is %s" %("Alfred.Xue"))
#输出效果：
My name is Alfred.Xue

 2.打印整数

print("I am %d years old." %(25))
#输出效果：
I am 25 years old.

 3.打印浮点数

print ("His height is %f m"%(1.70))
#输出效果：
His height is 1.700000 m