初识python 3

标签：初识 python if for

if 流程控制的使用

[root@Client-1 day2]# cat if.py

#!/usr/bin/python

score = int(raw_input("Please a num: "))

if score >= 90:

    print ‘A‘

    print ‘very good‘

elif score >=80:

    print ‘B‘

    print ‘good‘

elif score >=60:

    print ‘C‘

    print ‘PASS‘

else:

    print ‘D‘

    print ‘Fail‘

[root@Client-1 day2]# python if.py

Please a num: 86         

B

good

打印乘法口诀

[root@Client-1 day2]# vi for.py

#!/usr/bin/python

for i in xrange(1,10):

    for j in xrange(1,i+1):

        print "%sx%s=%s" % (j,i,j*i),

    print

保存退出

[root@Client-1 day2]# python for.py

1x1=1

1x2=2 2x2=4

1x3=3 2x3=6 3x3=9

1x4=4 2x4=8 3x4=12 4x4=16

1x5=5 2x5=10 3x5=15 4x5=20 5x5=25

1x6=6 2x6=12 3x6=18 4x6=24 5x6=30 6x6=36

1x7=7 2x7=14 3x7=21 4x7=28 5x7=35 6x7=42 7x7=49

1x8=8 2x8=16 3x8=24 4x8=32 5x8=40 6x8=48 7x8=56 8x8=64

1x9=9 2x9=18 3x9=27 4x9=36 5x9=45 6x9=54 7x9=63 8x9=72 9x9=81

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本文出自 “知识改变命运” 博客，谢绝转载！

初识python 3

标签：初识 python if for

原文地址：http://ahtornado.blog.51cto.com/4826737/1795205