Javascript生成的表有时会失败
最后一个表和之前的表有时也不能正确加载,有时会中断我的循环 自从我在javascript中添加了表创建部分后,代码中就开始出现这个错误 我的问题是为什么,因为我的方法在大多数情况下都是有效的,但在这些情况下却不行。我正在jsfiddle上运行它 感谢您的帮助 最后,我想加上一张明星的照片,上面有“新内容”的短语,如果你也能帮忙的话,你会帮上大忙的Javascript生成的表有时会失败,javascript,jquery,html,Javascript,Jquery,Html,最后一个表和之前的表有时也不能正确加载,有时会中断我的循环 自从我在javascript中添加了表创建部分后,代码中就开始出现这个错误 我的问题是为什么,因为我的方法在大多数情况下都是有效的,但在这些情况下却不行。我正在jsfiddle上运行它 感谢您的帮助 最后,我想加上一张明星的照片,上面有“新内容”的短语,如果你也能帮忙的话,你会帮上大忙的 <html> <head> </head> <body> <input type
<html>
<head>
</head>
<body>
<input type="button" value="Delete" onclick="deleteRow()">
<table id="myTable1" border="1"></table>
<br>
<table id="myTable2" border="1"></table>
<br>
<table id="myTable3" border="1"></table>
<br>
<h1 class="box">
<table style="width:100%" id = "table1">
</table>
<br>
<p id="time"></p>
<span id="num1"></span>
+ <span id="num2"></span> =
<input id="answer" type="text" size="3"/>
<button onclick = "math1()">Check</button>
</h1>
</body>
</html>
+ =
检查
这就是Javascript将遵循的HTML
window.onload = function uphigh() {
document.getElementById("num1").innerHTML = parseInt(Math.floor((Math.random() * 10) + 1));
var num1 = document.getElementById("num1").innerHTML;
document.getElementById("num2").innerHTML = parseInt(Math.floor((Math.random() * 10) + 1));
var num2 = document.getElementById("num2").innerHTML;
num1 = parseInt(num1);
num2 = parseInt(num2);
var num3 = num1 + num2;
insRow(2, 5, 'myTable1', num1);
insRow(2, 5, 'myTable2', num2);
insRow(4, 5, 'myTable3', num3);
};
function uphigh() {
document.getElementById("num1").innerHTML = parseInt(Math.floor((Math.random() * 10) + 1));
var num1 = document.getElementById("num1").innerHTML;
document.getElementById("num2").innerHTML = parseInt(Math.floor((Math.random() * 10) + 1));
var num2 = document.getElementById("num2").innerHTML;
num1 = parseInt(num1);
num2 = parseInt(num2);
var num3 = num1 + num2;
insRow(2, 5, 'myTable1', num1);
insRow(2, 5, 'myTable2', num2);
insRow(4, 5, 'myTable3', num3);
}
function math1() {
var num1 = document.getElementById("num1").innerHTML;
var num2 = document.getElementById("num2").innerHTML;
num1 = parseInt(num1);
num2 = parseInt(num2);
var num0 = num1 + num2;
var answer = document.getElementById("answer").value;
answer = parseInt(answer);
if (num0 == answer) {
var things = ['Way to Go!!!', 'Congratulations!!!', 'Correct!!!', 'Your Doing Great!!!'];
var thing = things[Math.floor(Math.random() * 4)];
alert(thing);
deleteRow();
uphigh();
document.getElementById("answer").value = "";
} else {
alert("Incorrect answer!! \nPlease Try Again");
document.getElementById("answer").value = "";
}
}
function insRow(rows, col, tableId, num) {
for (var j = 0; j < rows; j++) {
var x = document.getElementById(tableId).insertRow();
for (var i = 0; i < col; i++)
var y = x.insertCell(0);
}
var row = parseInt(num / 5);
var cols = num % 5;
var x = document.getElementById(tableId).rows;
if (row != 0) {
for (var j = 0; j < row; j++) {
x = document.getElementById(tableId).rows;
var y = x[j].cells;
for (var i = 0; i < 5; i++) {
y[i].innerHTML = "NEW CONTENT";
}
}
}
var y = x[row].cells;
for (var i = 0; i < cols; i++) {
y[i].innerHTML = "NEW CONTENT";
}
}
function deleteRow() {
for (var j = 0; j < 2; j++)
document.getElementById('myTable1').deleteRow();
for (var j = 0; j < 2; j++)
document.getElementById('myTable2').deleteRow();
for (var j = 0; j < 4; j++)
document.getElementById('myTable3').deleteRow();
}
window.onload=函数uphigh(){
document.getElementById(“num1”).innerHTML=parseInt(Math.floor((Math.random()*10)+1));
var num1=document.getElementById(“num1”).innerHTML;
document.getElementById(“num2”).innerHTML=parseInt(Math.floor((Math.random()*10)+1));
var num2=document.getElementById(“num2”).innerHTML;
num1=parseInt(num1);
num2=parseInt(num2);
var num3=num1+num2;
insRow(2,5,'我的表1',num1);
insRow(2,5,'我的表2',num2);
insRow(4,5,'我的表3',num3);
};
函数uphigh(){
document.getElementById(“num1”).innerHTML=parseInt(Math.floor((Math.random()*10)+1));
var num1=document.getElementById(“num1”).innerHTML;
document.getElementById(“num2”).innerHTML=parseInt(Math.floor((Math.random()*10)+1));
var num2=document.getElementById(“num2”).innerHTML;
num1=parseInt(num1);
num2=parseInt(num2);
var num3=num1+num2;
insRow(2,5,'我的表1',num1);
insRow(2,5,'我的表2',num2);
insRow(4,5,'我的表3',num3);
}
函数math1(){
var num1=document.getElementById(“num1”).innerHTML;
var num2=document.getElementById(“num2”).innerHTML;
num1=parseInt(num1);
num2=parseInt(num2);
var num0=num1+num2;
var answer=document.getElementById(“answer”).value;
答案=parseInt(答案);
如果(num0==答案){
var things=[“干得好!!!”、“恭喜!!!”、“正确!!!”、“你做得很好!!!”];
var thing=things[Math.floor(Math.random()*4)];
警惕(事物);
deleteRow();
uphigh();
document.getElementById(“答案”).value=“”;
}否则{
警告(“回答不正确!!\n请重试”);
document.getElementById(“答案”).value=“”;
}
}
函数insRow(行、列、表ID、num){
对于(var j=0;j
建立这个网站是为了帮助孩子们学习基础数学
不知道如何向fiddle添加链接。既然您已经在使用fiddler,请发布链接,以便其他人可以查看工作代码。一些JS DOM实现拒绝直接在
中插入
,您需要
、
或
。检查情况是否不是这样。