pseudo code is as follows;

</script>
<script>

    $(function(){

        $("-sharpeng").on("click", function(){

            fn1();
            fn2();
            fn3();

        });

        function fn1(){
            console.log("fn1");
        };
        function fn2(){
            console.log("fn2");
        }
        function fn3(){
            console.log("f3");
        }

    });


    function fnK1(){
        console.log("fnK1");
    }
    function fnK2(){
        console.log("fnK2");
    }
    function fnK3(){
        console.log("fnK3");
    }

    fnK1();
    fnK2();
    fnK3();



</script>

the logic here is that the three methods fnK1 (), fnK2 (), fnK3 () are loaded normally; after clicking the id=eng link, load the three methods in the click event;

updated the pseudo code of the main building, you can run it locally;
extracted the code and wrote a demo to locate the problem, and all three methods fn1 () were executed; I know that this problem is caused because the three methods fnK1 () are executed in the last sequence; therefore, there should be something wrong with the logic of this code.