'''
@Project:Python
@Time:2018/8/13 11:23
@Author:xvnmeng
'''
name = 'zhangsan'
print("Hello %s, welcome to the world of python!" % name)
age = 30
print("Oh, you are %d !" % age)

unknow = 100
print("Your printing is %r." %unknow)
ct = 100*3
print("xx %r " % ct)
first_name = 'xvn'
last_namew = 'meng'
print("My name is %s \n %r" % (first_name, last_namew))
