How to parse the value when the json key is a number _ javascript skills

For numeric key names or abnormal variable characters (such as spaces), you must use aa [x] to set the value when the json key is a number, for example:
Var aa = {'000000': 'aaaaa '};
Alert (sss.111 );
This is not the case. alert won't play anything.

Json keys must be an object before they can be taken out, for example:
Var aa = {'s111s ': 'aaaaa '};
Var idd = "s111s ";
Alert (sss. idd );

Answer:

For numeric key names or abnormal variable characters (such as spaces), aa [x] must be used.
Var aa = {'000000': 'aaaaa '};
Alert (sss ["111"]);