与split相反

Question

split()中awk的反义词是什么？
想象一下，我有一个包含containig字符/整数的数组。

我尝试过的

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);

但是输出是:

color original: #FFFF00
color joined: 0

那当然是不正确的。

更新:
很酷，最后得到以下代码(受答案中存在的join函数启发):

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);

诀窍是在重新加入内容时不使用 +符号

Answer 1

知道split()的反面就是join()，一个简单的Google搜索就为我提供了此页面，该页面似乎包含解决方案:http://www.gnu.org/software/gawk/manual/html_node/Join-Function.html。它将数组的所有元素连接在一起，并返回相应的字符串。

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

玩得开心