Ex5 More Variables and Printing

字符串和变量

Ex 5中，引入了格式化字符串的新东西(format string). 单纯的string是比较简单的: 用单引号或双引号包裹一端文本，就是 string 了。在示例代码里，要在一段文本里加上 variables，然后还要在最终显示结果里，把 variables 表示的内容一同显示出来。

Ex5 示例代码:

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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)

运行结果如下:

新技能

Ex 5 里面，要学习的新技能: format string，％s，％d，％r 含义， string 中有多个变量时，该如何处理…