true 和 false 的退出码

运行下面这段程序，填写它打印出来的结果。

def run(steps, stop_on_error=False):
    """steps 是一串退出码；返回 (跑了几条, 整个脚本的退出码)"""
    ran = 0
    last = 0
    for rc in steps:
        ran = ran + 1
        last = rc
        if stop_on_error and rc != 0:
            return ran, rc
    return ran, last

def ok(rc):
    return rc == 0

print(str(ok(0)) + "/" + str(ok(1)) + "/" + str(ok(2)))