A. mkdir /dir1/dir2/dir3
B. mkdir -R dir1/dir2/dir3
C. mkdir -p /dir1/dir2/dir3
D. mkdir -r /dir1/dir2/dir3
第1题:
A、RandomAccessFile(newFile("D:\\itcast\\dir1\\test.java"),"rw")
B、RandomAccessFile("D:\\itcast\\dir1\\test.java","r")
C、RandomAccessFile("D:\\itcast\\dir1\\test.java")
D、RandomAccessFile("D:\\itcast\\dir1\\test.java","wr")
第2题:
A. cp -i ./dir1/* ./dir2
B. cp -P ./dir1/* ./dir2
C. cp -d ./dir1/* ./dir2
D. cp -r ./dir1/* ./dir2
第3题:
将目录dir2复制成dir1
第4题:
tonywouldliketomakeiteasierforusersofthevideoapplicationtoenternewdocusingthe“videoform”,he’dlikeuserstobeabletocreatenew“video”docformwithintheview.Whichoneofthefollowingshouldtonysotobuildthisinterface?()
A.createaviewactionthathasthefollowingformula:@command([create];”video”)
B.createaformactionthathasthefollowingformula:@command([compose];”video”)
C.createaviewactionthathasthefollowingformula:@command([compose];”video”)
D.createadatabaseactionthathasthefollowingformula:@command([compose];”video”)
第5题:
在MySQL中,指定一个已存在的数据库作为当前工作数据库的命令是()
A.SELECT
B.USING
C.USE
D.CREATE