jacob获取属性，报错com.jacob.com.ComFailException: A COM exception has been encountered: At Invoke of: FPJE Description: ??Ч??????????

Jacob获取了该属性并报告了错误com . Jacob . com . com失败异常:遇到了com异常:调用时的:fpje描述:？？Ч?？？？？？？？？？Jacob获取了该属性并报告了错误com . Jacob . com . com失败异常:遇到了com异常:调用时的:fpje描述:？？Ч?？？？？？？？？？简介:当我调用其他公司提供的DLL来获取属性时:string fpdm0 = dispatch.get (ds，" FPDM quot；).getString()；，报告了这个错误:com.jacob.co