Perl 你好世界不工作 [英] Perl Hello World Not Working
问题描述
我刚刚开始学习 perl.我编写了一个 Hello World 程序 - hello.pl 并使用+x"使其可执行.
I've just started learning perl. I wrote a Hello World program - hello.pl and made it executable using '+x'.
我可以使用 perl hello.pl 执行它,但是当我尝试 ./hello.pl 时,出现错误:错误:没有这样的文件Hello World"
I can execute it using perl hello.pl, but when I try ./hello.pl, an error is coming: Error: no such file "Hello World"
是什么原因?
我的程序
use warnings;
use strict;
use 5.010;
print "Hello World";
我的错误:
./hello.pl: line 1: use: command not found./hello.pl: line 2: use: command not found./hello.pl: line 3: use: command not found错误:没有这样的文件Hello World"
./hello.pl: line 1: use: command not found ./hello.pl: line 2: use: command not found ./hello.pl: line 3: use: command not found Error: no such file "Hello World"
推荐答案
使用 shebang line 在程序的顶部.它告诉内核或 Apache 将文件解释为 Perl 脚本.并且应该把use warnings;
和use strict;
放在程序的顶部
Use shebang line in the top of the program. It tells the kernel or Apache to interpret the file as a Perl script. and should put the use warnings;
and use strict;
in the top of the program
#!/usr/bin/perl
use warnings;
use strict;
print "hello world";
关于shebang的更多信息
And more about shebang
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