Altium Designer 文档
...
((PCB Query Functions))_AD
PCB Query((Parameters))_AD
Query_Lang-PCBFunctions_Parameters_ParameterValueParameterValue_AD
This document is no longer available beyond version 21. Information can now be found here: ParameterValue for version 25
Parent page: PCB Query Functions - Parameters
Summary
Returns the string Value of a PCB object Parameter, which can be tested to return PCB objects that comply to the Query.
Syntax
ParameterValue(ParameterName : String) : String
Example Usage
ParameterValue(‘Design Item Id’) Like 'CAP*'
Returns all objects with the Design Item Id Parameter that has a Value string beginning with CAP, such as CAP-NP-100nF-50V-0805, CAP-P-22uF-10V-MCCT-B, etc.
ParameterValue(‘Design Item Id’) Like '*0805*'
Returns all objects with the Design Item Id Parameter that has a Value string which includes 0805.
StrToNumber(ParameterValue('VoltageRating'),V) > 50
Returns all objects that have a VoltageRating Parameter Value greater than 50 volts. The string Value returned by ParameterValue is converted to a number for the comparison by the unit-aware StrToNumber function.