Perl!"; PrintMe(); print "Inside the function PrintHello $string\n"; } sub PrintMe { print "Inside the function PrintMe $string\n"; } # Function call PrintHello(); print "Outside the function $string\n"; 1234567891011121314151617 ...
AI代码解释 BufferedReader br=null;try{br=newBufferedReader(newFileReader("test.txt"));String line=br.readLine();while(null!=line){if(line.startsWith("http:"))System.out.print(line);line=br.readLine();}}catch(FileNotFoundException e){System.out.println("Can't open file:"+e.getMessage(...
int类型的默认值是0 String类型的默认值是null double类型的默认值是0.0d Integer类型的默认值是null Long类型的默认值是null long类型的默认值是0L float...类型的默认值是0.0f char类型的默认值是\u0000 byte类型的默认值是(byte)0 short类...
-sha1 -sign \"$keyfile\" -out temp_sign.dat temp_policy.dat"); my $output = read_file("temp_sign.dat"); return $output; } # Read a file into a string and return the string sub read_file { my ($file) = @_; open(INFILE, "<$file") or die("Failed to open $file: $!
For development or more information, see the otherREADME. Usage Usage: perl perlpp.pl [options] [filename] Options: -o, --output filename Output to the file instead of STDOUT. -D, --define name=value Set $D{name}=value in the generated code. The hash %D always exists, but is emp...
2[19370] WARN: Use of uninitialized value$ENV{"REQUEST_METHOD"}instring eq at /wfe/asg/modules/asg_fcgi.pm line 59. 3test:/var/sec/chroot-httpd/var/webadmin# 有正常的错误返回,说明webadmin.plx文件正常,执行正常。 又发现该文件没...
@lines = <STDIN>; # read standard input in list context lines是一个List,所以,如果此时的<STDIN>是一个FILE的话,会一直读到文件末尾,然后每行作为一个 element赋给这个List;如果<STDIN>是keyboard的话,会把每行输入的string都作为一个element赋给这个 List,直到用户按下了ctrl+D(Linux/UNIX系统下,当然这...
However, for backward compatibility, such as when using bit string operations when characters are all less than 256 in ordinal value, one should not use "~" (the bit complement) with characters of both values less than 256 and values greater than 256. Most importantly, DeMorgan's laws ("...
As before, perl will try to match the regex at the earliest possible point in the string. At each character position, perl will first try to match the first alternative, "dog". If "dog" doesn't match, perl will then try the next alternative, "cat". If "cat" doesn't match either,...
String concatenation using the.operator (same as PHP): print"Hello ".$string;# "Hello world" 1. "Booleans" Perl has no boolean data type.A scalar in anifstatement evaluates to boolean "false" if and only if it is one of the following: ...