笨办法06字符串(string)和文本

代码如下：

 1 # coding : utf-8
 2 x = "There are %d types of people." % 10
 3 binary = "binary"
 4 do_not = "don't"
 5 y = "Those who know %s and those who %s." % (binary, do_not)
 6 
 7 print x
 8 print y 
 9 
10 print "I said: %r." % x
11 print "I also said: %s." % y #将原代码中的‘’单引号删去了，与%r的打印结果做对比
12 
13 hilarious = False
14 joke_evaluation = "Isn't that joke so funny?! %r"
15 
16 print ( joke_evaluation % hilarious )
17 
18 w = "This is the left side of..."
19 e = "a string with a right side."
20 
21 print w + e

运行结果：

%r是repr；%s是str；前者是被repr处理后的string对象，后者直接是string对象。使用%r打印出的是字符串会带上引号‘’，使用%s则不会