习题5 更多的变量和打印

二话不说上代码

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 %d inches tall." %my_height
print "He's %d pounds heavy." %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)</span>

开始编译有误，其实问题在于最后少打了一个%d，注意检查，后来改正了就好了



似乎跟C语言差不多，%d 指代十进制整数，%s 是string字符串

总体是不难的。

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附加练习

1、去掉my_

name = 'zed A. Shaw'
age = 35 # not a lie
height = 74 # inches
weight = 180 # lbs
eyes = 'blue'
teeth = 'White'
hair = 'Brown'

print "Let's talk about %s." %name
print "He's %d inches tall." %height
print "He's %d pounds heavy." %weight
print "Actually that's not too heavy."
print "He's got %s eyes and %s hair." %(eyes,hair)
print "His teeth are usually %s depending on the coffee." %teeth

#this line is tricky,try to get it exactly right
print "If I add %d, %d and %d I get %d." %(
age,height,weight,age+height+weight)

照样运行

2、%r 似乎很有用，什么都能打印

3、网上搜到的

%c	转换成字符（ASCII 码值，或者长度为一的字符串）
%r	优先用repr()函数进行字符串转换（Python2.0新增）
%s	优先用str()函数进行字符串转换
%d / %i	转成有符号十进制数
%u	转成无符号十进制数
%o	转成无符号八进制数
%x / %X	(Unsigned)转成无符号十六进制数（x / X 代表转换后的十六进制字符的大 小写）
%e / %E	转成科学计数法（e / E控制输出e / E）
%f / %F	转成浮点数（小数部分自然截断）
%g / %G	%e和%f / %E和%F 的简写
%%	输出%

4、数学转换，大概就是一个计算功能吧，这里略...