最近我问了一个关于我用 JavaScript 编码的三角形计算的问题。基本上我去了 JSLint(一个 JavaScript 调试工具)来获取一些数据,以了解为什么函数和过程中没有任何东西在看起来不错的地方工作,并且我遵循了之前给出的建议,但我相信这是一个单独的问题。我已经发布了下面的代码:
<html>
<head>
<link href="stylesheet/stylesheet.css" rel="stylesheet" type="text/css">
<script language="Javascript" type="text/javascript">
/* Key/Legend
Var
inp1 = input1
inp2 = input2
inp3 = input3
Triangle_Inputs = Form Name
*/
/* Notes
In computing, a parser is one of the components in an interpreter or
compiler that checks for correct syntax and builds a data structure
(often some kind of parse tree, abstract syntax tree or other hierarchical structure)
implicit in the input tokens.
Technique
if (side1 is equal to side2 AND side 2 is equal to side3) {equalitateral}
if (side1 is equal to side2 AND side 2 doesn't equal to side3) {isosceles}
if (side1 doesn't equal to side2 AND side2 doesn't equal to side 3 AND side 3 doesn't equal side 1) {scalene}
http://www.w3schools.com/js/js_comparisons.asp
*/
function checkinputs(){
/* Var = parseInt(document.Name_Of_Element_Form.Field_Name(Input).value); */
/* Input Fields */
inp1 = parseInt(document.Triangle_Inputs.input1.value);
inp2 = parseInt(document.Triangle_Inputs.input2.value);
inp3 = parseInt(document.Triangle_Inputs.input3.value);
/* Side options */
sideA = (inp1);
sideB = (inp2);
sideC = (inp3);
if (sideA == sideB && sideB == sideC) {
alert("Equalateral");
}
if (sideA == sideB && != sideC) {
alert("Isosceles");
}
if (sideA != sideB == sideC) {
alert("Isosceles");
}
if (sideA != sideB != sideC != sideA) {
alert("Scalene!");
}
}
</script>
</head>
<body>
<div id="Container">
<div id="Header"><h1></h1></div>
<div id="Content_1">
<div id="Explanation">
This calculator will determine what
triangle you have made depending on
the integer values in the input fields.
</div>
<div id="Form">
<FORM NAME="Triangle_Inputs" METHOD="GET">
Enter the triangle values below: <br>
<p>
<h4>Side 1: </h4><BR>
<INPUT TYPE="Integer" NAME="input1" VALUE=""><P>
<h4>Side 2: </h4><BR>
<INPUT TYPE="Integer" NAME="input2" VALUE=""><P>
<h4>Side 3:</h4> <BR>
<INPUT TYPE="Integer" NAME="input3" VALUE=""><P>
<INPUT TYPE="button" NAME="Submit" Value="Submit" Class="Submit" onClick="checkinputs()">
</FORM>
</div>
<div id="Verbal_Output">
<h2>You made a:</h2>
<p>
<h2>Triangle</h2>
</div>
</div>
<p>
<p>
<div id="Content_2">
<div id="Image_Output">asdad</div>
</div>
</div>
</body>
</html>
这是网站本身,忽略 div 标签。我想知道为什么我不能点击按钮以及更多 JSlint 说的重点:
inp1 = parseInt(document.Triangle_Inputs.input1.value);
第 39 行字符 1 'inp1' 在定义之前被使用。
对于 inp1、inp2 和 inp3。
编辑:
我对使用变量的理解是不正确的,我列出它们时没有使用“,”。相反,我调用了一个变量,其余的我没有。