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Scripting Guide • Introduction • Basic JSL Syntax
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Basic JSL Syntax
A JSL script is a series of expressions. Each expression is a section of JSL code that accomplishes a task. JSL expressions hold data, manipulate data, and send commands to objects.
Many expressions are nested message names. Message contents are enclosed in parentheses:
Message Name ( argument 1, argument 2, ... );
The meaning of JSL names depends on the context. The same name might mean one thing in a data table context and something entirely different in a function context. See “Rules for Name Resolution” on page 97 in the “JSL Building Blocks” chapter for more information.
Almost anything that follows certain punctuation rules, such as matching parentheses, is a valid JSL expression. For example:
win = New Window( "Window Example",
<<Modal,
Text Box( "Hello, World" ),
Text Box( "-----" ),
Button Box( "OK" )
);
注意： 
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Names can have embedded spaces. See “Names” on page 87 in the “JSL Building Blocks” chapter for more information.
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Message contents are enclosed in parentheses, which must be balanced. See “Parentheses” on page 84 in the “JSL Building Blocks” chapter.
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Items are separated by commas. See “Commas” on page 84 in the “JSL Building Blocks” chapter.
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JSL is not case sensitive; you can type “text box();” or “Text Box()”.
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Messages are commonly nested inside other messages.