拆分awk的对面 [英] awk opposite of split

问题描述

什么是拆分（）在 AWK 相反？
想象一下，我有数组containig字符/整数。

what would be an opposite of split() in awk? Imagine I have array containig characters/integers.

我已经试过：

color = "#FFFF00";
printf("color original: %s\n", color);
split(color, chars, "");
joined = "";
for (i=1; i <= length(chars); i++) {
    joined = joined + chars[i];
}
printf("color joined: %s\n", joined);

不过输出是：

color original: #FFFF00
color joined: 0

这当然是不正确的。

更新：
很酷，结束了以下code（通过加入解答功能present启发）：

UPDATE: cool, ended up with the following code (inspired by join function present in answers):

color = "#FFFF00";
printf("color original: %s\n", color);
split(color, chars, "");
joined = "";
for (i=1; i <= length(chars); i++) {
    joined = joined "" chars[i];
}
printf("color joined: %s\n", joined);

加入的东西回来时，诀窍是不要使用 + 标志

推荐答案

知道了）相反的拆分（是加入（），仅仅是谷歌搜索给了我这个页面，这似乎包含的解决方案：的 http://www.gnu.org/software/gawk/manual/html_node/Join-Function.html 。它加入一个数组中的所有元素一起，并返回对应的字符串。

Knowing that the opposite of split() is join(), a mere Google Search gives me this page, which seems to contain the solution : http://www.gnu.org/software/gawk/manual/html_node/Join-Function.html . It joins all the elements of an array together, and returns the corresponding string.

['f','o','o'] => "foo"

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