笨办法06字符串(string)和文本

代码如下：

 # coding : utf-8
 x = "There are %d types of people." % 10
 binary = "binary"
 do_not = "don't"
 y = "Those who know %s and those who %s." % (binary, do_not)

 print x
 print y 

 print "I said: %r." % x
 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

 hilarious = False
 joke_evaluation = "Isn't that joke so funny?! %r"

 print ( joke_evaluation % hilarious )

 w = "This is the left side of..."
 e = "a string with a right side."

 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