语句ofstreamfSALARY.DATios::applios::binary的功能是建立流对象-X题卡

执行语句序列ofstreamoutfitedata.datif...cout＜＜okelsecout

outfilfail()或outfile outfilgood()或!outfile outfilgood()或outfile outfilfail()或!outfile

执行语句序列ofstreamoutfileDATA．DATif．．．cout＜＜OKelsecout

outfilfail()或outfile outfilgood()或!outfile outfilgood()或outfile outfilfail()或!outfile

ofstream myfile：myfile, open("d：ofiltxt")； ofstream *myfile=new ofstream；myfile-＞open("d；ofiltxt")； ofstream myfile("d：ofiltxt")； ofstream *myfile＝new ("d：ofiltxt")；

执行语句序列ofstreamoutfileDATA．DATifcout＜＜OKelsecout＜＜F

outfilfail()或 outfile outfilgood()或 !outfile outfilgood()或 outfile outfilfail()或 !outfile

以下不能正确创建输出文件对象并使其与磁盘文件相关联的语句是

ofstream myfile；mynle.open(“d：ofile.txt”)； ofstream * mynle=new ofstream；mynle-＞open(“d：Ofile.txt”)； ofstream myhle(“d：ofile.txt”)； ofstream * mynle=new(“d：ofile.txt”)；

执行语句序列ofstreamoutfiledata.dat;if...cout＜＜ok;elseco

outfilfail() 或 outfile outfilgood()或!outfile outfilgood()或 outfile outfilfail()或!outfile

执行语句序列ofstreamoutfiledata.datifcout＜＜okelsecout＜＜f

outfilfail()或outfile outfilgood()或!outfile outfilgood()或outfile outfilfail()或!outfile

以下不能正确创建输出文件对象并使其与磁盘文件相关联的语句是

ofstream myfile;myfile.open("d:ofile.txt"); ofstream*myfile=new ofstream;myfile-＞open("d:ofile.txt"); ofstream myfile("d:ofile.txt"); ofstream*myfile=new("d:ofile.txt");

以下不能正确创建输出文件对象并使其与磁盘文件相关联的语句组的选项是

ofstream cfile; cfilopen( "d ： ofiltxt" ); ofstream * cfile = new ofstream; cfile -＞ open( "d : ofiltxt ); ofstream cfile( "d: ofiltxt" ); ofstream * cfile = new( "d : ofiltxt" )

以下不能正确创建输出文件对象并使其与磁盘文件相关联的语句是

ofstream myfile；mynlopen(“d：ofiltxt”)； ofstream * mynle=new ofstream；mynle-＞open(“d：Ofiltxt”)； ofstream myhle(“d：ofiltxt”)； ofstream * mynle=new(“d：ofiltxt”)；

以下不能正确创建输出文件对象并使其与磁盘文件相关联的语句是

ofstream myfile;myfilopen("d:ofiltxt"); ofstream*myfile=new ofstream;myfile-＞open("d:ofiltxt"); ofstream myfile("d:ofiltxt"); ofstream*myfile=new("d:ofiltxt");

执行语句序列ofstreamoutfileDATA.DATif...cout＜＜OKelsecout

outfilfail ()或outfile outfil good() 或outfile outfilgood ()或!outfile outfilfail()或!outfile

以下不能正确创建输出文件对象并使其与磁盘文件相关联的语句组的选项是

ofstream cfile; cfile.open( "d ： ofile.txt" ); ofstream * cfile = new ofstream; cfile -＞ open( "d : ofile.txt ); ofstream cfile( "d: ofile.txt" ); ofstream * cfile = new( "d : ofile.txt" )

执行语句序列ofstreamoutfiledatA.dat;ifcout＜＜ok;elsecout＜

outfilfail()或outfile outfilgood()或!outfile outfilgood()或outfile outfilfail()或!outfile

以下不能正确创建输出文件对象并使其与磁盘文件相关联的语句是

ofstream myfile：myfile, open("d：ofile．txt")； ofstream *myfile=new ofstream；myfile-＞open("d；ofile.txt")； ofstream myfile("d：ofile.txt")； ofstream *myfile＝new ("d：ofile.txt")；

以下不能正确创建输出文件对象并使其与磁盘文件相关联的语句是

ofstream myfile；myfile.open("d：ofile.txt")； ofstream *myfile=new ofstream；myfile-＞open("d：ofile.txt")； ofstream myfile("d：ofile.txt")； ofstream *myfile=new("d：ofile.txt")；

执行语句序列ofstreamoutfiledata.dat;if...cout＜＜ok;elseco

outfile.fail() 或 outfile outfile.good()或!outfile outfile.good()或 outfile outfile.fail()或!outfile

执行语句序列 ofstreamoutfileDATE.DAT ifcout＜＜OK;elseco

outfilfail( )或outfile outfilgood( )或outfile outfilgood( )或!outfile outfilfail( )或!out file

执行语句序列ofstreamoutfiledata.datif...cout＜＜okelsecout

outfilfail()或outffle outfilgood()或!outfile outfilgood()或outfile outfilfail()或!outfile

以下不能正确创建输出文件对黎并使其与磁盘文件相关联的语句是

ofstreammyfile；myfile．open("d：ofile．txt")； ofstream*myfile=newofstream；myfile->open("d：ofile．txt”)； ofstreammyfile("d：ofile．txt")； ofstream*myfile=new("d：ofile．txt")；

语句ofstream f("SALARY.DAT",ios::appl ios::binary)；的功能是建立流对象f，试图打开文件SALARY.DAT并与之连接，并且( )。

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