摘要：按照一定模式，从数组和对象中提取值，对变量进行赋值。 数组解构 let arr =[1,2,3]; let [a,b,c] = [1,2,3]; let [a,b,[c,d]] = [1,2, [3,4]]; let [a,b,[c]] = [1,2, [3,4]]; c会对应3 let [a,b, 阅读全文