Is there a function that works in opposite way to chop/chomp?

nhw_cs

It seems that there is no existing function just like chop to do this. I know it is easy to implement by programming. I am just trying to look for an single function without addtional codes to do this.

py

Hi,

I just want to append newline character to each element of an array. Is there an existing fun ...
nhw_cs 发表于 2011-07-07 14:42

如果楼主寻找的函数作用是“opposite way to chop/chomp”
那这个“函数”就是“.”

1. 
   
2. my @result = ('a','b','c');
   
3. 
   
4. @result = map { $_ . "123" } @result;
   
5. print @result;
   
6. @result = map { chop; $_ } @result;
   
7. print @result;
   

复制代码

py

回复 1# nhw_cs

哦，可能我理解错了
chop @array;
所以你想要的是：
chop_opposite(@array, "\n");
？？
如果是，那的确没有“chop_opposite”这个函数。如果JAVA可能会提供这样的函数，Perl不会提供这样的函数，Perl不是这种风格的语言。而且这样的函数，一定需要的话就写个模块了。

zhlong8

我怎么从来没有这个需求…可以用 $_ .= "\n" for @ary

zhlong8

我怎么从来没有这个需求…可以用 $_ .= "\n" for @ary

jason680

楼主搞错了....

opposite way to chop/chomp 就算这个function有也是跟本是鸡肋.....

chomp用于去除不必要的换行("\n"),何来又把不必的东西又加回来!!??

chop就又更不可能.....
chop只会把最后一个丢出(不管是否为"\n"),如果你没有chop后的值,
又如何恢复回来

Kitaisky

{
$" = "\n";

print "@array";
}