shell±à³Ìѧϰ֮º¯Êý

1¡¢´´½¨º¯ÊýºÍʹÓú¯Êý

-bash-3.2# cat test.sh
#!/bin/bash
hello ()
{
i=1
until [ $i -gt 5 ]
do
echo $i
let i++
done
}
hello
-bash-3.2# sh test.sh
1
2
3
4
5

2¡¢·´»ØÖµ

#!/bin/bash
hello ()
{
i=1
until [ $i -gt 5 ]
do
echo $i
let i++
done
}
hello
echo $
-bash-3.2# sh test.sh
1
2
3
4
5
0