# Bash 的 break 命令

break [N]

while [ true ]; do
    while [ true ]; do
        while [ true ]; do
            echo Hello in Loop
            break 3                 # 跳出 3 层循环
        done
    done
done

echo Hello in END

break: break [n]
    Exit for, while, or until loops.

    Exit a FOR, WHILE or UNTIL loop.  If N is specified, break N enclosing
    loops.

    Exit Status:
    The exit status is 0 unless N is not greater than or equal to 1.