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由语句OPEN(3,FILE=FILE.DAT,SYATUS='NEW')打开的文件是()。

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OPEN(UNIT=3,FILE=‘QW’)  OPEN(3,FILE=QW)  OPEN(FILE=‘QW’,3,STATUS=OLD)  OPEN(3,FILE=QW,STATUS=UNKNOWN)  
有格式顺序存取文件  无格式顺序存取文件  有格式随机存取文件  无格式随机存取文件  
在Open语句中的文件名前添加路径  把程序中各处的“20”改为“1”  把Print ch语句改为Print #20,ch  把Open语句中的Output改为Input  
OPEN(8)  OPEN(8,FORM=‘UNFORMATTED’)  OPEN(8,ACCESS=‘DIRECT’)  OPEN(8,FILE=‘AA’)  
Open "Datdat" For OutputAs #1  Open "Datdaf' For InputAs #1  Open Datdat For OutputAs #I  Open Datdar For Append As #1  
Open"text.dat"For Write As #1  Open"text.dat"For Binary As #1  Open"text.dat"For Input As #1  Open"text.dat"For Random As #1  
A.OPEN(UNIT=3,FILE= ADAT,STATUS=NEW)  B.OPEN(UNIT=3,FILE=ADAT,STATUS=OLD)  C.OPEN(3,FILE='ADAT',STATUS='NEW')  D.OPEN(D,FILE='ADAT',STATUS='OLD')  
Open "file l .dat" For lnpu't As#1  Open”file l .dat" For Append As#1  Open”file1.dat" For Output As#1  Open”file1.dat" For Random As#1 Len=20  
Open"texdat" For Write As#1  Open"texdat"For Binary As#1  Opcn"texdat"For lnput As#1  Open"texdat"For Random As#1  
OPEN(UNIT=3,FILE=ADAT,STATUS=NEW)  OPEN(UNIT=3,FILE=ADAT,STATUS=OL  OPEN(3,FILE='ADAT',STATUS='NEW')  OPEN(D,FILE='ADAT',STATUS='OLD')  
Open"texdat"For Write As #1  Open"texdat"For Binary As #1  Open"texdat"For Input As #1  Open"texdat"For Random As #1  
OPEN(8)  OPEN(8,FORM=‘UNFORMATTED')  OPEN(8,ACCzongS=‘DIRECT')  OPEN(8,FILE=‘AA')  
Open "texdar"For Write As #1  Open "texdat"For Binary As #1  Open "texdat"For Input As #1  Open "texdat"For Random As #1  
OPEN(UNIT=3,FILE=ADAT,STATUS=NEW)  OPEN(UNIT=3,FILE=ADAT,STATUS=OL  OPEN(3,FILE=′ADAT′,STATUS=′NEW′)  OPEN(D,FILE=′ADAT′,STATUS=′OLD′)  
有格式顺序存取文件  无格式顺序存取文件  有格式随机存取文件  无格式随机存取文件  
OPEN(UNIT=3,FILE=AA.DAT,STATUS=OLD)  OPEN(3,FILE=′AA.DAT′,STATUS=′NEW′)  OPEN(UNIT=3,FILE=AA.DAT,STATUS=NEW)  OPEN(D,FILE=′AA.DAT′,STATUS=′OLD′)  
Open "texdat" For Write As#1  Open "texdar" For Binary As#1  Open "texdat" For Input As#1  Open "texdat" For Random As#1  

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