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Hey Larry Sorry,look at the script 18-6 104 lines,

Password:Use only letters,numbers,and the underscore.Must be between 4 and 20 characters long.

1:Can i only set letters,numbers,and the underscore for my passwords?2:if the password includes special characters,i do not know if it is right.?Thanks
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I'm sorry, but I'm really not understanding the context for your questions. Is this about a specific script in the book (if so, which?) or about passwords in general?

Hey Larry Sorry,look at the script 18-6 104 lines,

Password:Use only letters,numbers,and the underscore.Must be between 4 and 20 characters long.

1:Can i only set letters,numbers,and the underscore for my passwords? 2:if the password includes special characters,i do not know if it is right.? Thanks 

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Thanks for clarifying. The rules correlate to those in the regular expression on line 40 which requires only "word characters": numbers, letters (case-insensitive), and the underscore. Special characters should fail that regex.

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You

Can 

Create

Paragraphs

Using

the enter key. 

 

Is that what you're wondering?

 

The paragraphs are not automatically spaced, so you'll need to hit the enter key twice to create a blank line between.

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