function VarType(const V: Variant): Integer;DescriptionVarType returns the type code of the given Variant. The resulting value is constructed from the following constants declared in the System unit.const varEmpty = $0000;
varNull = $0001;
varSmallint = $0002;
varInteger = $0003;
varSingle = $0004;
varDouble = $0005;
varCurrency = $0006;
varDate = $0007;
varOleStr = $0008;
varDispatch = $0009;
varError = $000A;
varBoolean = $000B;
varVariant = $000C;
varUnknown = $000D;
varByte = $0011; varStrArg = $0048; varString = $0100;
varAny = $0101;
varTypeMask = $0FFF;
varArray = $2000; varByRef = $4000;按F1后的结果,在system单元中有定义
varNull = $0001;
varSmallint = $0002;
varInteger = $0003;
varSingle = $0004;
varDouble = $0005;
varCurrency = $0006;
varDate = $0007;
varOleStr = $0008;
varDispatch = $0009;
varError = $000A;
varBoolean = $000B;
varVariant = $000C;
varUnknown = $000D;
varByte = $0011; varStrArg = $0048; varString = $0100;
varAny = $0101;
varTypeMask = $0FFF;
varArray = $2000; varByRef = $4000;按F1后的结果,在system单元中有定义
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