Interesting Apple Script

Say "hello World"
Say "hello World! "
Say "hello World? "

I recently added a Mac Mini on my desk because of my work needs. This is my first time using Mac, so there are many interesting discoveries. The most interesting one is Apple Script.
Apple Script is a script language running on Mac. the biggest feature is its easy-to-understand syntax, such as "1 is equal 2", "If (true) then display dialog" Hey! "", "3 is less than 23", "Tell application" safari "to activate" makes you think that this is not a computer, but a computer!
The first three sentences in this article are the Hello world example. Interestingly, these three sentences show different results! What's the difference? Hey, you'll have a chance to test it on your own in the future.

Interesting, interesting, or interesting.