question

本文提供了一份详细的Perl编程面试准备资料,涵盖了从基本语法到高级特性的常见问题,帮助读者更好地理解Perl语言,并为实际编程应用打下坚实的基础。

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1). What arguments do you frequently use for the Perl interpreter and what do they mean?
2). What does the command ‘use strict’ do and why should you use it?
3). What do the symbols $ @ and % mean when prefixing a variable?
4). What elements of the Perl language could you use to structure your code to allow for maximum re-use and maximum readability?
5). What are the characteristics of a project that is well suited to Perl?
6). Why do you program in Perl?
7). Explain the difference between my and local.
8). Explain the difference between use and require.
9). What’s your favorite module and why?
10). What is a hash?
11). Write a simple (common) regular expression to match an IP address, e-mail address, city-state-zipcode combination.
12). What purpose does each of the following serve: -w, strict, -T ?
13). What is the difference between for & foreach, exec & system?
14). Where do you go for Perl help?
15). Name an instance where you used a CPAN module.
16). How do you open a file for writing?
17). How would you replace a char in string and how do you store the number of replacements?
18). When would you not use Perl for a project?

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