[已解决]For循环到最后语法错误··

zhuoyue65

1. >>> magicians =['alice','ben','peter']
   
2. >>> for magician in magicians :
   
3.         print(magician.title()+",that was a great trick!")
   
4.         print("i can not wait to see your next trick,"+magician.title()+".\n")
   
5.        
   
6. print(thank you,everyone.that was a great magic show!)

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这个运行到最后报错：SyntaxError: invalid syntax

下图是书上的案例：

最佳答案

月排行榜 / 总排行榜

醉酒青牛

2017-9-13 13:43:22

for循环并没有问题，问题是最后一句print语句，你应该是想打印一句字符串，可是你没有加引号，仅此而已。

1. magicians =['alice','ben','peter']
   
2. for magician in magicians:
   
3.     print(magician.title()+",that was a great trick!")
   
4.     print("i can not wait to see your next trick,"+magician.title()+".\n")     
   
5. print('thank you,everyone.that was a great magic show!')

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跳转到最佳答案楼层

alltolove

你的magicians数组里全是字符串，根本没有带title()方法的对象，如果想有必须手动给字符串写一个title()方法

zhuoyue65

alltolove 发表于 2017-9-13 11:17
你的magicians数组里全是字符串，根本没有带title()方法的对象，如果想有必须手动给字符串写一个title()方 ...

“如果想有必须手动给字符串写一个title()方法”。这个你说的 我不太理解。
但是我在Shell里新建了个文件，然后把代码打入就能成功print了。

但是还有个疑问，就是怎么样才能在IDLE SHELL里运行最后一步 Print（“”thank you ,everyone!“”）?

醉酒青牛

for循环并没有问题，问题是最后一句print语句，你应该是想打印一句字符串，可是你没有加引号，仅此而已。

1. magicians =['alice','ben','peter']
   
2. for magician in magicians:
   
3.     print(magician.title()+",that was a great trick!")
   
4.     print("i can not wait to see your next trick,"+magician.title()+".\n")     
   
5. print('thank you,everyone.that was a great magic show!')

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醉酒青牛

zhuoyue65 发表于 2017-9-13 11:23
“如果想有必须手动给字符串写一个title()方法”。这个你说的 我不太理解。
但是我在Shell里新建了个文 ...

title()方法是字符串内部方法，单词首字母大写，这样用没错。

1. print('thank you, everyone!')
   

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就会输出：thank you, everyone!

懒惰有只猫

代码最后一句字符串没有加引号，所以编译出错了
你的代码：

1. print(thank you, everyone.that was a great magic show!)

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正确：

1. print("thank you, everyone.that was a great magic show!")

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流浪1123

1. magicians =['alice','ben','peter']
   
2. for magician in magicians:
   
3.     print(magician.title()+",that was a great trick!")
   
4.     print("i can not wait to see your next trick,"+magician.title()+".\n")
   
5. print("thank you","everyone.that was a great magic show!")
   

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的确是最后一句的，字符串没有加引号的！！完整代码如上，测试可以的。