摘要：生成器生成迭代器師徒教育歡迎你師徒課堂站在前方，為你導航依次打印師徒教育歡迎你師徒課堂站在前方，為你導航注釋生成器用來生成迭代器函數(shù)名字中間有一個號

generators(生成器)

生成迭代器：

    function* get(){
        let a = 1;
        a++;
        console.log(a);
        yield "abc";
                
        let y = 2+a;
        console.log(y);
        yield "hellow";
        console.log("dapang");
        yield "師徒教育";
        yield "歡迎你";
        yield "師徒課堂";
        console.log(123);
        yield "站在前方，為你導航";
    }
    let iter = get();
    console.log(iter.next());
    console.log(iter.next());
    console.log(iter.next());
    console.log(iter.next());
    console.log(iter.next());
    console.log(iter.next());
    console.log(iter.next());
    //依次打?。?
        Object {value: "abc", done: false}
        4
        Object {value: "hellow", done: false}
        dapang
        Object {value: "師徒教育", done: false}
        Object {value: "歡迎你", done: false}
        Object {value: "師徒課堂", done: false}
        123
        Object {value: "站在前方，為你導航", done: false}
        Object {value: undefined, done: true}
注釋:1.生成器用來生成迭代器;
     2.function函數(shù)名字中間有一個*號.