&& 优先级高于||
1||0&&2
1
(1||0)&&2
2
https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Operator_Precedence
&& 优先级高于||
1||0&&2
1
(1||0)&&2
2
https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Operator_Precedence