摘要：
const arr = [2,4,16]; let v = 0; for(const i in arr) v |= arr[i]; console.log(v); let xxx = 23;// 16 4 2 let r = []; let i = 0; while (xxx > 0) { cons 阅读全文
摘要：
select * from lwjh_source where bitand(multiple, :value) > 0 阅读全文