计算机程序

nll_Click(objectsender,EventArgse)\r(\rif((flag==3)II(flag==1)II(flag==2)II(flag==4)II(flag==0))\r(\rthis.textBoxl.Clear();\rflag=5;\r)\rif(flag==5)EvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\rC++@P`pFG\rif(useless==true)\r(\rif(special==false)\r(\rthis.textBoxl.Text=null;L[\]^UU_\r)\rif(a!=null)L`aabcdef\.-.hij*+\rI\rthis.a+=this.buttonll.Text;\rthis.textBox1.Text+=this.button1l.Text;\rthis.special=true;\r)\relse\r(\rthis.textBox1.Text=null;L[\m]^stuvw\rthis.textBox1.Text+=this.button11.Text;Lm]^p]^h\rthis.a+=this.button11.TextgmXno*+h\r)\r}\rJI\r}\r}\r)\rBC`p—?\r20EvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\r-˜X„8:\r&\n™š@›œ60%,¡p:\r¢£¤35£§?\r¨©¢£¤15£§?\r8¢£¤10£§?EvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\rC++@P`pFG\r›¢£?\r22