3. 第一个程序

---

print "hello world!"        #python2.x中print还只是语句
print "hello again"
print "I like typing this."
print "This is fun."
print 'Yay!Printing.'       #用''或""都可以，但前后要一致
print "I'd much rather you 'not'."
print 'I "said" do not touch this.'

输出
hello world!
hello again
I like typing this.
This is fun.
Yay!Printing.
I'd much rather you 'not'.
I "said" do not touch this.