python中的运算符的字符串格式错误

Question

使用Python字符串格式化，我的预期输出是：

If you took 19 and 13 and added them, you would get 22

但不太确定我是否做得恰当。我一直收到这个错误：

 Not all arguments converted during string formatting

你能帮忙吗？

代码：

my_age = 19
teenager = 13

print "If you took %s and %s and added them, then you will get %" %(my_age,teenager,my_age + teenager)

Answer 1

你刚刚错过了字符串

中最后一个％之后的最后一个's'

print "If you took %s and %s and added them, then you will get %s" %(my_age,teenager,my_age + teenager)