第一个Python程序和Shell对比

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最近开始学习python，对比shell做一些比较：
Shell：

#!/bin/bash
# Author:Byrd
# Version:0.1
# Site:note.t4x.org
# Contact:root#t4x.org
a=100
if [ $a -ge 0 ]; then
    echo $a
else
    echo "-$a"
fi

#!/bin/bash

# Author:Byrd

# Version:0.1

# Site:note.t4x.org

# Contact:root#t4x.org

a=100

if [ $a -ge 0 ]; then

echo $a

else

echo "-$a"

备注：-gt表示大于或者等于，具体请man test
Python

#!/usr/bin/env python
# Author: Byrd
# Created Time: Tue 20 Dec 2016 02:20:07 PM CST
a = 100
if a >= 0:
    print(a)
else:
    print(-a)

#!/usr/bin/env python

# Author: Byrd

# Created Time: Tue 20 Dec 2016 02:20:07 PM CST

a = 100

if a >= 0:

print(a)

else:

print(-a)

备注：当语句以:结尾时候，缩进的语句视为代码块 SourceByrd's Blog-https://note.t4x.org/code/first-python-diff-shell/

December

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