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习题 1: 第一个程序(略)
Warning
如果你来自另外一个国家，而且你看到关于 ASCII 编码的错误，那就在你的 python 脚本的最上面加入
这一行：
# -*- coding: utf-8 -*-
这样你就在脚本中使用了 unicode UTF-8 编码，这些错误就不会出现了。
语法错误(SyntaxError)
习题2：注释和井号(略)
习题3：数字和数字计算
习题4：变量和命名
习题 5: 更多的变量和打印(格式化字符串)
my_name = ‘Zed A. Shaw‘
my_age = 35 # not a lie
my_height = 74 # inches
my_weight = 180 # lbs
my_eyes = ‘Blue‘
my_teeth = ‘White‘
my_hair = ‘Brown‘
print "Let‘s talk about %s." % my_name
print "He‘s %.2f kilometres tall." % (my_height*2.54)
print "He‘s %.2f kilogrammes heavy." % (0.4535924*my_weight)
print "Actually that‘s not too heavy."
print "He‘s got %s eyes and %s hair." % (my_eyes, my_hair)
print "His teeth are usually %s depending on the coffee." % my_teeth
# this line is tricky, try to get it exactly right
print "If I add %d, %d, and %d I get %d." % (my_age, my_height, my_weight, my_age + my_height + my_weight)
习题6：字符串和文本
%r 用来做 debug 比较好，因为它会显示变量的原始数据（raw data），而其它的符
号则是用来向用户显示输出的。
习题7：更多打印
习题8：打印打印
formatter=‘%r %r %r %r‘
print formatter % (1,2,3,4)
print formatter % (‘one‘,‘two‘,‘three‘,‘four‘)
print formatter % (True,False,False,True)
print formatter % (formatter,formatter,formatter,formatter)
print formatter % (
"I had this thing.",
"That you could type up right.",
"But it didn‘t sing.",
"So I said goodnight."
)
1 2 3 4
‘one‘ ‘two‘ ‘three‘ ‘four‘
True False False True
‘%r %r %r %r‘ ‘%r %r %r %r‘ ‘%r %r %r %r‘ ‘%r %r %r %r‘
‘I had this thing.‘ ‘That you could type up right.‘ "But it didn‘t sing." ‘So I said goodnight.‘
习题 9: 打印，打印，打印(\n)
print ‘How old are you ? ‘
age = int(float(raw_input()))
print ‘How tall are you ? ‘
height = raw_input()
print ‘How much do you weight ? ‘
weight = raw_input()
print ‘So,you are \‘%s\‘ old,%r tall and %r heavy.‘ % (age,height,weight)
或者：#int(input())
其实input也是调用了raw_input，只是做了eval处理
而eval有什么作用呢？
input：会根据用户的输入来做类型的转换
raw_input：则会把用户的输入都作为一个字符串来处理
input它会根据用户输入变换相应的类型,而且如果要输入字符和字符串的时候必须要用引号包起来
raw_input则是不管用户输入什么类型的都会转变成字符型
习题 10: 那是什么？
习题 11: 提问
习题 12: 提示别人
习题 13: 参数、解包、变量
习题 14: 提示和传递
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原文地址：http://www.cnblogs.com/Unix-Python/p/5256388.html
