接口的使用
com.grapecity.documents.excel.ISignatureSet
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com.grapecity.documents.excel中ISignatureSet的使用
修饰符和类型方法说明ISignature.getParent()
Returns the Parent object for the specified object.IWorkbook.getSignatures()
Gets a collection of Signature objects that correspond to the digital signature attached to a document.Workbook.getSignatures()
Gets a collection of Signature objects that correspond to the digital signature attached to a document.