某公司面試題及答案

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Software Configuration Management Question

perl

Basic

1. Which statement is wrong:

A. $_= hello world;

B. $a=hello world;

C. my $b,$a=hello world;

D. my ($a,$b)=(0,hello world);

Item C: $b is empty and $a is ‘hello world’

All of items is correct in program syntax, and can run.

2. The expression should be (B), then the following code can run correctly:

$a=0;$b=55;

while (expression)

{

$a+=2;

}

print "$a/n";

A. $a = $b

B. $a*$a <= $b

C. $a != $b

D. $b == 0

3. @array is an array variable, what is output of “print @array;” :A

A. Each element of this array

B. The size of this array

C. The first element of this array

D. Nothing

4. “$a = @array;”, what is value of $a: B

A. The first element’s value of this array

B. The size of this array

C. This line code is wrong

D. N/A

5. Which code snippet can print all elements in cd: B

A. foreach $Var (keys cd)

{

print “$Var /n”;

}

B. for ($I=0;$I< em="""">

{

print “$cd{$I} /n”;

}

C. while ($Var (keys cd))

{

print “$Var /n”;

}

D. print join(‘/n’,cd);

STYLE="pAGe-BreAK-BeFore: always" CLEAR="all"

Advance:

6. After execute following code snippet, what is value of $count: B (match twice)

$Str=’hello worldwww.3gos.info!’;

$count=0;

while ($Str=~m/(/w+)/g)

{

$count++;

}

A. 1

B. 2

C. 3

D. 12

7. What is the result of $string? D

$string = "This string contains the number 25.11.";

$string =~ /-?(/d+)/.?(/d+)/;

A. 25.

B. .11

C. 25.11

D. 25.11.

I don’t know what is meaning of -, but perhaps the answer is D

8. What is meaning of following code snippet?

open(MYFILE,"temp.txt");

while () {

while ( /(/w)/g ) {

$seen{$1}++;

}

}

foreach $word(keys %seen)

{

print "$seen{$word} $word/n";

}

close(MYFILE);

A. Delete all words in temp.txt

B. Calculate the frequency of each word in temp.txt

C. Wrong code

D. Calculate the sum of words in temp.txt

$1 is first variable of group match of perl, it match a char here.

9. In following code,expression#1 D let $point get the reference of @ARGV, expression#1 should be:

#!/usr/contrib/bin/perl -w

expression#1

print "ARGV = ", join(",", expression#2), "/n";

A. my $point=@ARGV;

B. my $point={@ARGV};

C. my $point=ARGV;

D. my $point=/@ARGV;

10. The expression#2 A should be:

A. @$point

B. $point

C. @point

D. /@point

NOTE: Answer ofquestion 5 shoud be A

20060519d.height = height; d.width = width; 　 } 　 public synchronized Dimension getValues(){ // Ooops! Breaks encapsulation return d; 　 } }

如何發(fā)生獲勝的QA群體(How to build a successful QA team).

爽利外包的14條分寸

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