Teledyne-lecroy CATC Scripting Language Reference Manual Uživatelský manuál stáhnout pdf (Strana 25)

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Statements

CATC Scripting Language

if ( 3 - 3 || 2 - 2 ) Trace ( "Yes" );

else Trace ( "No" );

will cause “No” to be printed, because 3 - 3 || 2 - 2 will evaluate to False

(neither 3 - 3 nor 2 - 2 is nonzero).

while Statements

A while statement is written as

while <expression> <statement>

An example of this is

x = 2;

while ( x < 5 )

{

Trace ( x, ", " );

x = x + 1;

}

The result of this would be

2, 3, 4,

for Statements

A for statement takes the form

for (<expression1>; <expression2>; <expression3>)

The first expression initializes, or sets, the starting value for x. It is executed one

time, before the loop begins. The second expression is a conditional expression. It

determines whether the loop will continue -- if it evaluates true, the function keeps

executing and proceeds to the statement; if it evaluates false, the loop ends. The

third expression is executed after every iteration of the statement.

Figure 7-1: Execution of a for

statement

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 56 57

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Teledyne-lecroy CATC Scripting Language Reference Manual Uživatelský manuál Strana 25