Which of the following methods of calling a subroutine is not valid?
A. $yearstogo = $Retireage Currentage($name);
B. $namex = getname();
C. getname() = @array1;
D. $yearstogo = $Retireage Currentage();
正解:C
質問 2:
Which one of the following choices lists the three loop-control commands?
A. exit, last, loop
B. redo, next, last
C. loop, exit, next
D. next,first,lasr
正解:B
質問 3:
Which of the following describes the functionality of the DBI tables method?
A. The tables method returns a list of all system tables in a database.
B. The tables method returns a list of all related tables in a database.
C. The tables method returns a list of all user-defined tables in a database.
D. The tables method returns a list of all tables in a database.
正解:D
質問 4:
Which one of the following statements uses correct syntax and expressions?
A. do ($a++) until ($b = $a);
B. do {$in = $in++} while ($in < 100);
C. do {$a++} until {$a == $b}\;
D. do (print "Hello $a") until ($a = 10);
正解:B
質問 5:
Regular expressions are best used for which task?
A. To determine whether a string matches a specific pattern
B. To output data to a text file
C. To perform arithmetic functions
D. To perform spelling checks within text files
正解:A
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