一开始的写法：

switch (type) {
        case 1:
            console.log("aaa");
            break;
        case (2||3||4||5||6||7):
            console.log("aaa");
            break;
        case 8:
            console.log("aaa");
            break;
        default:
            break;
    }

悲催的是，上面这种写法只有当type为2时才能case到，后面的3/4/5/6/7都case不到了，555~
正确写法如下：

switch (type) {
        case 1:
            console.log("aaa");
            break;
        case 2:
        case 3:
        case 4:
        case 5:
        case 6:
        case 7:
            console.log("aaa");
            break;
        case 8:
            console.log("aaa");
            break;
        default:
            break;
    }

参考：
Multiple conditions in single case in Switch in JavaScript

switch