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calm.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>四则运算</title>
<style>
body{
margin: 0;
padding: 0;
height: 100%;
background-color: skyblue;
}
#main{
margin: 20px auto;
width: 800px;
text-align: center;
background-color: white;
}
li{
width: 100%;
height: 20px;
list-style: none;
}
#myform{
margin: 20px auto;
width: 80%;
text-align: left;
text-align: center;
/*background-color: skyblue;*/
}
label{
font-size: 14px;
}
#calm{
text-align: left;
}
li{
width: 100%;
height: 25px;
margin: 2px 0;
line-height: 25px;
padding: 00px;
padding-left: 20PX;
}
.name{
position: absolute;
/*left: 700px;*/
/*display: inline-block;*/
margin-top: 2.5px;
width: 85px;
height: 20px;
/*border: 0;*/
line-height: 20px;
padding: 0;
box-sizing: border-box;
}
.liSpan{
display: inline-block;
width: 120px;
height: 20px;
/*background-color: white;*/
text-indent: 2em;
line-height: 20px;
}
.liSpan1{
display: inline-block;
width: 240px;
height: 20px;
line-height: 20px;
/*background-color: red;*/
}
.span{
display: inline-block;
width: 100px;
margin-left: 100px;
text-indent: 3em;
}
#button2{
margin: 10px;
display: inline-block;
width: 95px;
}
#grade{
height: 35px;
}
#timetable{
position: absolute;
top: 20px;
left: 40px;
}
</style>
</head>
<body>
<div id="main">
<label id="label1">请输入您要的范围（默认10）</label>
<input type="number" id="cNum"><br>
<label id="label2">请输入您要的算式数（默认10）</label>
<input type="number" id="nNum">
<button id="button1">确认</button>
<div id="cLanguage">
<button id="simple">简体中文</button>
<!--請輸入您要的範圍（默認10）-->
<button id="traditional">繁体中文</button>
<button id="english">英文</button>
</div>
<form id="myform">
<div id="calm"></div>
<button id="button2" style="display: none;">提交</button>
<div id="grade" style="display:none;">
<span id="contentR">正确题目数为：</span>
<span id="numR"></span>
<span id="contentW">错误题目数为：</span>
<span id="numW"></span>
</div>
</form>
</div>
<div id="timetable">
<span id="time">点击确认后开始计时</span>
<br>
<span id="timer"></span>
</div>
<script>
var label1 = document.getElementById('label1');
var label2 = document.getElementById('label2');
var traditional = document.getElementById('traditional');
var simple = document.getElementById('simple');
var english = document.getElementById('english');
var div = document.getElementById('calm');
var n = 0;
var asd, nNum, cNum;
var button1 = document.getElementById('button1');
var button2 = document.getElementById('button2');
var grade = document.getElementById("grade");
var contentR = document.getElementById("contentR");
var contentW = document.getElementById("contentW");
var numR = document.getElementById("numR");
var numW = document.getElementById("numW");
var timetable =document.getElementById("timetable");
var time =document.getElementById("time");
var timer =document.getElementById("timer");
var rpt = []; // 定义变量存储运算数值（用于判重）
var ret; // 定义存储当前运算式
var result = []; // 定义变量存储结果
var result1; // 存储当前结果
// 随机符号
var str = ['+','-','x','÷'];
var sign = function(){
// var str = ['+','-','x','÷'];
var a =Math.floor(Math.random()*4);
return str[a];
}
var Common = function(a,b){
var c = a % b;
if (c == 0) {
return b;
} else {
return Common(b, c);
}
}
// 随机数据(分数和整数)
var ranNum = function () {
var a, b;
var math = [];
var isFraction = Math.floor(Math.random() * 10);
// 随机设置为分数
if (isFraction > 5) {
var divisor;
a = Math.floor(Math.random() * cNum);
b = Math.floor(Math.random() * cNum + 1);
if (a == 0) {
math = 0;
} else {
if (a < b) {
divisor = Common(b ,a);
math = "(" + (a/divisor) + "/" + (b/divisor) + ")";
} else if (a > b) {
divisor = Common(a ,b);
math = "(" + (b/divisor) + "/" + (a/divisor) + ")";
} else {
math = 1;
}
}
} else {
a = Math.floor(Math.random() * cNum)
math = a;
}
// console.log(math + "number");
return math;
}
// 判断答案
var answer = function(a,b){
var c;
if(a.indexOf("-") == -1){
a = a.replace(/'/,"+");
console.log(a);
console.log(eval(a));
}else{
a = a.replace(/'/,"-");
console.log(a);
console.log(eval(a));
}
a = eval(a);
if(a == b ){
c = 'right';
n++;
}else{
c = 'wrong';
}
return c;
}
// 产生运算，随机运算式，放入数组
var ranData =function(){
// 随机运算式的长度
var data = Math.floor(Math.random()*3 + 1);
if(cNum >= 100){
data = 1;
}
var str = [];
var num1 = ranNum();
str.push(num1);
var num2;
var sin;
for(var i = 0; i < data;i++){
sin = sign();
str.push(sin);
num2 = ranNum();
if(sin == "÷"){
// 除数为0时，重新赋值
while(num2 == 0){
num2 = ranNum();
}
}
str.push(num2);
}
return str;
}
// 将运算时合并成字符串
var ranChange =function(data){
return data.join('');
}
// 计算式子的结果
var ranRes =function(data){
var str = [];
// console.log(data);
for(var i = 0;i<data.length;i++){
if(data[i] == 'x'){
data[i] = '*';
}
if(data[i] == '÷'){
data[i] = '/';
}
str.push(data[i]);
}
var res = str.join('');
return eval(res);
}
var delsign =function(formula){
console.log(formula);
var str = ['+','-','x','÷'];
var str_i = 0;
var temp = [];
var left = formula.lastIndexOf("(");
var s = formula.split("");
console.log(s);
var left_n = 0;
while(left != -1){
left_n++;
var right = formula.indexOf(")",left);
var right_n = 0;
while(right == temp[right_n]){
right = formula.indexOf(")",temp[right_n]);
right_n++;
}
var middle = formula.indexOf("/",left);
if(middle > 0 && middle < right){
var i = 0;
var hasop = false;
while(i<str.length){
var op = formula.indexOf(str[i],left);
if(op >= 0 && op < right){
hasop =true;
}
i++;
}
if(!hasop){
s.splice(left,1,"");
s.splice(right,1,"");
formula =s.join("");
}
}
temp[left_n-1] = right;
left = formula.lastIndexOf("(",left-1);
}
return formula;
}
// 判断重复函数
var checkRepeat =function(ret,result1){
for(var i = 0;i < rpt.length;i++){
// 判断长度
if(ret.length == rpt.length){
// 判断内容
if(ret.join == rpt[i].join){
// 判断结果
if(result[i] == result1){
return 1;
}
}
}
}
rpt.push(ret);
// console.log(rpt)
result.push(result1);
return 0;
}
// 运行主函数
var main =function(cNum,nNum){
var res = [];
for(var i = 0; i < nNum;i++){
var li = document.createElement('li');
var input =document.createElement('input');
// input.type = 'number';
// input.className = name;
input.setAttribute("class", "name");
do{
var data = ranData();
var putData = ranChange(data);
res.push(ranRes(data));
console.log(ranRes(data));
result1 = ranRes(data);
ret = data.sort();
}while(checkRepeat(ret,result1))
// while(putData.indexOf("(") >= 0 || putData.indexOf(")") >= 0){
// putData =putData.replace(")","");
// putData =putData.replace("(","");
// }
putData = delsign(putData);
li.innerHTML ="<span class= 'liSpan'>" + (i + 1) + "</span>　<span class= 'liSpan1'>" + putData + " = </span>";
li.appendChild(input);
div.appendChild(li);
}
return res;
}
var tim
// 确认运算式的范围和数量，生成运算式
button1.onclick = function(e){
var ti = 0;
e.preventDefault();
if(button2.style.display == "none"){
div.innerHTML = "";
grade.style.display = "none";
n = 0;
}
nNum = document.getElementById('nNum').value;
if(nNum <= 0){
nNum = 10;
}
cNum = document.getElementById('cNum').value;
if(cNum <= 0){
cNum = 10;
}
asd = main(cNum, nNum);
button1.disabled = true;
button2.style.display = "inline-block";
tim = setInterval(function() {
ti++
timer.innerHTML = ti + "s";
}, 1000);
time.innerHTML = "您的用时："
// tim();
}
// 判断计算的结果，计算正确率
button2.onclick = function(e){
e.preventDefault();
var input =document.querySelectorAll('form input');
var li =document.querySelectorAll("form li")
for(var i = 0 ; i < input.length;i++){
var a = input[i].value;
var b = asd[i];
// console.log(answer(12));
var check = answer(a,b);
var span = document.createElement('span');
span.setAttribute("class", "span");
if(check == "right"){
span.style.color = "green";
}else{
span.style.color = "red";
}
span.innerHTML = check;
li[i].appendChild(span);
}
button2.style.display = "none";
button1.disabled = false;
// grade.innerHTML += (n/nNum).toFixed(4)*100 + "%";
numR.innerHTML = n;
numW.innerHTML = (nNum - n);
grade.style.display = "block";
// console.log(n/nNum);
clearInterval(tim);
}
simple.onclick =function(e){
e.preventDefault();
label1.innerHTML = "请输入你要的范围（默认10）";
label2.innerHTML = "请输入您要的算式数（默认10）";
button1.innerHTML = "确认";
button2.innerHTML = "提交";
contentR.innerHTML = "正确题目数为：";
contentW.innerHTML = "错误题目数为：";
}
traditional.onclick =function(e){
e.preventDefault();
label1.innerHTML = "請輸入您要的範圍（默認10）";
label2.innerHTML = "請輸入您要的算式數（默認10）";
button1.innerHTML = "確認";
button2.innerHTML = "提交";
contentR.innerHTML = "正確題目數為：";
contentW.innerHTML = "錯誤題目數為：";
}
english.onclick =function(e){
e.preventDefault();
label1.innerHTML = "Please enter your range (default 10)";
label2.innerHTML = "Please enter the number of calculations you want (default 10)";
button1.innerHTML = "Confirm";
button2.innerHTML = "Submit";
contentR.innerHTML = "The correct number of items is：";
contentW.innerHTML = "The wrong number of items is：";
}
</script>
</body>
</html>