第二次作业（高级编程技术）

#2.1 ~2.2
message = "hello world"
print(message)
message = "hello"
print(message)

#2.3~2.7
name = "harvey"
print("Hello " + name + ",would you like to learn some python today")
print(name.title())
print(name.upper())
print(name.lower())
print('Albert Einstein once said,"A person who never made a mistake never tried anything new."')
name1 = "Albert Einstein"
message1 = '"A person who never made a mistake never tried anything new."'
print(name1 + " once said,"+ message1)
name2 = "\n\t harvey\t"
print(name2)
print(name2.lstrip())
print(name2.rstrip())
print(name2.strip())

#2.8
print(5+3)
print(12-4)
print(2*4)
print(16/2)