类型错误:%d 格式:需要一个数字，而不是 str [英] TypeError: %d format: a number is required, not str

问题描述

我想用打印格式打印字符串和数字，我有以下代码:

I want to use print format to print strings and numbers, and I have the following code:

John = {'strength': 10, 'skill': 10}
character1 = "John"
strength = eval(character1)['strength']
skill = eval(character1)['skill']
print " %d " % eval(character1)['strength']
print " %d " % strength
print "$s's strength is: %d, and $s's skill is: %d" % (character1, strength, character1, skill)
print "$s's strength is: %d, and $s's skill is: %d" % character1, eval(character1)['strength'], character1, eval(character1)['skill']

前两个打印我没有错误，他们打印 10，最后两个打印给我:类型错误:%d 格式:需要数字，而不是 str".

The first two print I have no error, they print 10, the the last two print give me: "TypeError: %d format: a number is required, not str".

不明白为什么，请指点，谢谢！

I do not understand why, please give some pointers, thanks!

推荐答案

这里有错误:$s 应该是 %s.

Here's the mistake: $s should be %s.

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