关于用javascript 自动计算的有关问题
日期：2014-05-16 浏览次数：20404 次
关于用javascript 自动计算的问题
我做的一个考评表是用excel先设计好的 然后用JSP做 主要涉及到的自动计算有些麻烦,包括所有行的自动计算,最后还要把 最后一列的得分自动计算出来 而且有自动增加行的功能 就是每行的表单的name是一样的 所以计算最后一列的得分比较困难,下面是个样例,哪位高手帮忙解决一下,我想实现的就是先每行各自计算 最后把等于号后面的3个加起来该什么实现,因为他们的name相同
<html>
<head>
<meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 ">
<title> + = </title>
</head>
<script type= "text/javascript ">
function startCalc(){
interval = setInterval( "calc() ",1);
}
function calc(){
one = document.autoSumForm.firstBox.value;
two = document.autoSumForm.secondBox.value;
document.autoSumForm.thirdBox.value = (one * 1) + (two * 1);
}
function stopCalc(){
clearInterval(interval);
}
</script>
<form name= "autoSumForm ">
<input type=text name= "firstBox " value= " " onFocus= "startCalc(); " onBlur= "stopCalc(); "> +
<input type=text name= "secondBox " value= " " onFocus= "startCalc(); " onBlur= "stopCalc(); "> =
<input type=text name= "thirdBox "> <br>
<input type=text name= "firstBox " value= " " onFocus= "startCalc(); " onBlur= "stopCalc(); "> +
<input type=text name= "secondBox " value= " " onFocus= "startCalc(); " onBlur= "stopCalc(); "> =
<input type=text name= "thirdBox "> <br>
<input type=text name= "firstBox " value= " " onFocus= "startCalc(); " onBlur= "stopCalc(); "> +
<input type=text name= "secondBox " value= " " onFocus= "startCalc(); " onBlur= "stopCalc(); "> =
<input type=text name= "thirdBox ">
</form>
<p> </p>
</body>
</html>
------解决方案--------------------
自动记算
<html>
<head>
<meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 ">
<title> + = </title>
</head>
<script type= "text/javascript ">
function startCalc(){
interval = setInterval( "calc() ",1);
}
function calc(){
fi= document.getElementsByName( "firstBox ");
//alert(fi[0].value)
se = document.getElementsByName( "secondBox ");
thi = document.getElementsByName( "thirdBox ");
for (i=0;i <fi.length;i++){
thi[i].value=((fi[i].value)*1)+((se[i].value)*1);
}
//two = document.autoSumForm.secondBox.value;
//document.autoSumForm.thirdBox.value = (one * 1) + (two * 1);
}
function stopCalc(){
clearInterval(interval);
}
</script>
<form name= "autoSumForm ">
<input type
我做的一个考评表是用excel先设计好的 然后用JSP做 主要涉及到的自动计算有些麻烦,包括所有行的自动计算,最后还要把 最后一列的得分自动计算出来 而且有自动增加行的功能 就是每行的表单的name是一样的 所以计算最后一列的得分比较困难,下面是个样例,哪位高手帮忙解决一下,我想实现的就是先每行各自计算 最后把等于号后面的3个加起来该什么实现,因为他们的name相同
<html>
<head>
<meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 ">
<title> + = </title>
</head>
<script type= "text/javascript ">
function startCalc(){
interval = setInterval( "calc() ",1);
}
function calc(){
one = document.autoSumForm.firstBox.value;
two = document.autoSumForm.secondBox.value;
document.autoSumForm.thirdBox.value = (one * 1) + (two * 1);
}
function stopCalc(){
clearInterval(interval);
}
</script>
<form name= "autoSumForm ">
<input type=text name= "firstBox " value= " " onFocus= "startCalc(); " onBlur= "stopCalc(); "> +
<input type=text name= "secondBox " value= " " onFocus= "startCalc(); " onBlur= "stopCalc(); "> =
<input type=text name= "thirdBox "> <br>
<input type=text name= "firstBox " value= " " onFocus= "startCalc(); " onBlur= "stopCalc(); "> +
<input type=text name= "secondBox " value= " " onFocus= "startCalc(); " onBlur= "stopCalc(); "> =
<input type=text name= "thirdBox "> <br>
<input type=text name= "firstBox " value= " " onFocus= "startCalc(); " onBlur= "stopCalc(); "> +
<input type=text name= "secondBox " value= " " onFocus= "startCalc(); " onBlur= "stopCalc(); "> =
<input type=text name= "thirdBox ">
</form>
<p> </p>
</body>
</html>
------解决方案--------------------
自动记算
<html>
<head>
<meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 ">
<title> + = </title>
</head>
<script type= "text/javascript ">
function startCalc(){
interval = setInterval( "calc() ",1);
}
function calc(){
fi= document.getElementsByName( "firstBox ");
//alert(fi[0].value)
se = document.getElementsByName( "secondBox ");
thi = document.getElementsByName( "thirdBox ");
for (i=0;i <fi.length;i++){
thi[i].value=((fi[i].value)*1)+((se[i].value)*1);
}
//two = document.autoSumForm.secondBox.value;
//document.autoSumForm.thirdBox.value = (one * 1) + (two * 1);
}
function stopCalc(){
clearInterval(interval);
}
</script>
<form name= "autoSumForm ">
<input type
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