JSQL 基于客户端的成绩统计实现方法

2019-06-06 07:40:26刘景俊

"insert into marks (nodename,innerHTML) values ('span','Chinese:')".ForDOM().execute();
("insert into marks (nodename,type,id,value) values ('input','text','chinese[" + (index) + "]','" + chinese + "')").ForDOM().execute();
"insert into marks (nodename,innerHTML) values ('span','Math:')".ForDOM().execute();
("insert into marks (nodename,type,id,value) values ('input','text','math[" + (index) + "]','" + math + "')").ForDOM().execute();
"insert into marks (nodename,innerHTML) values ('span','English:')".ForDOM().execute();
("insert into marks (nodename,type,id,value) values ('input','text','english[" + (index) + "]','" + english + "')").ForDOM().execute();
("insert into marks (nodename) values ('br')").ForDOM().execute();
};

for(var i=0; i<marks.length;i++) {
addto(i+2,marks[i].name,marks[i].sex,marks[i].chinese,marks[i].math,marks[i].english);
};

function insertline() {
var count = "select count(*) as Count from marks where id like 'name%'".ForDOM().query();
var index = count[0].Count + 1;
addto(index,"","","","","");
};

function dellastline() {
var count = "select count(*) as Count from marks where id like 'name%'".ForDOM().query();
var index = count[0].Count;
("delete from marks where id like '%["+ index +"]'").ForDOM().execute();
};

"create table savedmarks".execute();

function savemarks() {
var names = ("select value from marks where id like 'name%'").ForDOM().query();
var sexs = ("select value from marks where id like 'sex%'").ForDOM().query();
var chineses = ("select value from marks where id like 'chinese%'").ForDOM().query();
var maths = ("select value from marks where id like 'math%'").ForDOM().query();
var englishs = ("select value from marks where id like 'english%'").ForDOM().query();
"delete from savedmarks".execute();
for(var i=0;i<names.length;i++) {
("insert into savedmarks (name,sex,chinese,math,english) values ('"+ names[i].value +"','" + sexs[i].value + "'," + chineses[i].value + "," + maths[i].value + "," + englishs[i].value + ")").execute();
};
//alert(savedmarks);
};

function orderby(field,asc) {
savemarks();
var marks = ("select * from savedmarks order by " + field + " " + asc).query();
"delete from marks".ForDOM().execute();
for(var i=0; i<marks.length;i++) {
addto(i+2,marks[i].name,marks[i].sex,marks[i].chinese,marks[i].math,marks[i].english);
};
};
function order() {
var byfield = document.getElementById("byfield").value;
var ascdesc = document.getElementById("ascdesc").value;
orderby(byfield,ascdesc);
};
</script>
</body>
</html>

主要用到四个JS库,其中YESBRAIN.js是基库,JSQL.js是接口。JSQL-Memory.js和JSQL-DOM分别是JSQL对 javascript Objects Array 和 Html DOM 的 SQL 实现。

jsql javascript