使用sed命令
string="abc123" # 按+隔开:a+b+c+1+2+3+ echo $string|sed 's|.|&+|g' # 按空格隔开:a b c 1 2 3 echo $string|sed 's|.|& |g' # 按字母a隔开:aabaca1a2a3a echo $string|sed 's|.|&a|g' # 两个一组按+隔开:ab+c1+23+ echo $string|sed 's|..|&+|g'

使用sed命令
string="abc123" # 按+隔开:a+b+c+1+2+3+ echo $string|sed 's|.|&+|g' # 按空格隔开:a b c 1 2 3 echo $string|sed 's|.|& |g' # 按字母a隔开:aabaca1a2a3a echo $string|sed 's|.|&a|g' # 两个一组按+隔开:ab+c1+23+ echo $string|sed 's|..|&+|g'