`class FutuGateway(BaseGateway):
""""""

default_setting = {
    "password": "",
    "host": "127.0.0.1",
    "port": 11111,
    "market": ["HK", "US"],
    "env": [TrdEnv.REAL, TrdEnv.SIMULATE],
}

.....```
code text here
````
这个是futu_gateway里面的登陆信息设置，但不知道为啥只要密码，这是怎么回事？应该怎样才能登陆呢