eq $str2) { print "Strings \$str1 and \$str2 are equal. "; } else { print "Strings \$str1 and \$str2 are not equal. "; } if ($str1 eq $str3) { print "Strings \$str1 and \$str3 are equal. "; } else { print "Stri
my @equal_sigs; # the arrays that each of the signal must be equal to each other $sig_def .= "// The test case is generated by Perl script automatically and suggest you do not edit it by hand\n"; $sig_def .= "// Author: $author\n"; $result .= "\ninitial begin\n"; open...
/usr/local/bin/perl# Initializing Strings$a ="Welcome"; $b ="Geeks";# Comparing the strings usingneoperator$c = $ane$b;if($c ==1) {print"String1 is not equal to String2"; }else{print"String1 is equal to String2"; } 输出: String1 is not equal to String2 示例2: #!/usr/l...
= Returns Ture if the two operands are not equal, False otherwise. <= Returns Ture if the operand on the left is numerically less than or equal to the operand on the right of the operator. Returns False otherwise. => Returns Ture if the operand on the left is numerically greater than ...
第一,Perl使用elsif, 而不是elseif ! # 注意这里用的是eq ! # 对于字符串的相等,只能用eq (equal) 和 ne (not equal)。 } else { # 嗯,else还是和其他语言类似的 } foreach循环 # foreach循环其实有两种套路 # 普通的 my @arr = (a , b , c); foreach my $elem (@arr) { # 注意:my...
splice运算符最多可以包含四个参数。 第一个参数是数组名,这里我们指定我们正在执行操作的数组 第二个参数是起点,如上所述,你可以在数组中间执行操作。这指定了操作的起点。 第三个参数是长度 第四个参数是另一个列表或数组。 让我们举几个例子来理解这个: ...
(i.e.,NOT # a character in 0-9, a-z or A-Z) $a =~ m" [0-9^A-Za-z]"; # a mistake, Does not # equal the above. Instead matches 0-9, $a =~ m" [/t/n]"; # matches a space character: tab, newline or blank). 1. 2. 3. 4. 5. 6. 需许意的重要地方是第三...
\n" if @folder_not_equal; print RESULT "Original folder:\n", @ori_array, "$line\n"; 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 4, 工具执行第四步终端显示校验统计结果并存储至日志文件。
' is equal to ' . $b . ".\n"; print $a, ' is equal to ', $b, ".\n"; print "$a is equal to $b.\n"; # 代换 # 点操作符 # 列表 什么时候使用哪种写法完全取决于你(但是代换的写法是最容易读懂的). x 操作符初看起来没什么用处,但是在有些时候它确实非常有用处,例如下边的例子...
print "$two_numbers are not equal\n"; } else { print "$two_numbers are equal\n"; } print "Compare two strings using ne\n"; if ($str1 ne $str2) { print "$two_strings are not equal\n"; } else { print "$two_strings are equal\n"; ...