字符串的连续连接操作

beyes

下面例子演示对一个字符串进行多次连接的操作：

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#!/bin/sh
 
 tmpstr='458976'
 
 declare -A myarr
 
 full='0x33,'
 
 myarr=(['0']=0x30 ['1']=0x31 ['2']=0x32 ['3']=0x33 ['4']=0x34 ['5']=0x35 ['6']=0x36 ['7']=0x37 ['8']=0x38 ['9']=0x39)
 
 for ((i = 0; i < ${#tmpstr}; i++))
 do
         full="$full""${myarr[${tmpstr:i:1}]}"","
 done
 
 echo $full

运行输出：

0x33,0x34,0x35,0x38,0x39,0x37,0x36,

上面的例子中，通过对 $full 这个变量所代表的字符串在其末尾进行多个字符串的连接，每一次的连接结果存回 $full 变量中。