Javascript script programming solves the problem of test score statistics_javascript skills

Copy code The code is as follows:

/**
* @author georgewing
*/
function prepareCheckBox() {
document.getElementById("submit").onclick = function() {
selectedCheckBox(4);
}
}
function selectedCheckBox(x) {
var oInput = document.getElementsByTagName("input");
var iTotal = 0;
for(var i=0;iif(oInput[i].className == "checkedRadio") {
if(oInput[i].checked) {
//add x point
iTotal = iTotal x;
}
else {
// add 0 point
iTotal = iTotal 0;
}
}

}
document.getElementById("Total").setAttribute("value", iTotal);
alert(iTotal);
}

Tip: Abstract the constant 4 into a variable x, which is used as a parameter of the function. This is hard-coded abstraction. For details about hard-coding and abstraction, see the translation section of the "DOM scripting" book.