要想纠正这个错误，应该在第 9行末尾添加双引号。

To correct the error, add double quotation marks to the end of line 9.

youdao

单引号更好，因为使用单引号后您可以在一行程序内使用双引号。

Single quotes are better, because then you can use double quotes inside the one-liner.

youdao

比如说，关引号不可以放在一行的最前面。

For example, a close quotation mark cannot be put at the beginning of a line.

youdao

比如说，关引号不可以放在一行的最前面。

For example, a close quotation mark cannot be put at the beginning of a line.

youdao