[] + {}; 隐式转换后,是0 那 {} + []呢? var a = 42,b; b = ( a++, a); 相关文章: 2022-12-23 2022-12-23 2022-12-23 2021-09-17 2021-11-14 2021-11-16 2021-08-06 2022-12-23