<script type="text/javascript">
fn = (a, b) => Math.max(a, b);
document.write(" 5 和 4 的較大值是:"+fn(4, 5)+"<br>");
document.write(" 6 和 3 的較大值是:" +fn(6,3));
</script>
fn = (a, b) => Math.max(a, b);
document.write(" 5 和 4 的較大值是:"+fn(4, 5)+"<br>");
document.write(" 6 和 3 的較大值是:" +fn(6,3));
</script>
2020-05-04
我沒(méi)有在“case+”這個(gè)后面為輸入的數(shù)字添加“parseInt” 輸出的結(jié)果就是兩個(gè)數(shù)字合起來(lái)；比如輸入5和1，輸出是51； 但是其他算法就都可以正常運(yùn)行。就是“+”運(yùn)算符運(yùn)算的時(shí)候出現(xiàn)這個(gè)問(wèn)題
2020-04-28
var mynum =new Array(70,80,66,90,50,100,89);//定義數(shù)組mynum并賦值
var i;
for(i=0;i<mynum.length;i++)
{
if(mynum[i]<60)
{
document.write("成績(jī)不及格，不輸出！"+"<br>");
continue;
}
document.write("成績(jī):"+mynum[i]+"及格，輸出!"+"<br>");
}
var i;
for(i=0;i<mynum.length;i++)
{
if(mynum[i]<60)
{
document.write("成績(jī)不及格，不輸出！"+"<br>");
continue;
}
document.write("成績(jī):"+mynum[i]+"及格，輸出!"+"<br>");
}
2020-04-27
我來(lái)提交代碼了~
<script>
window.onload = function sub2(){
var btnObj = document.getElementById("btnId");
btnObj.onclick = function(){
sub=5-2;
alert("5和2的差:"+sub);
};
}
</script>
<form>
<button id="btnId">caculate</button>
</form>
<script>
window.onload = function sub2(){
var btnObj = document.getElementById("btnId");
btnObj.onclick = function(){
sub=5-2;
alert("5和2的差:"+sub);
};
}
</script>
<form>
<button id="btnId">caculate</button>
</form>
2020-04-16
var a = new Array();
for(var i = 0; i < 3; i++){
a[i] = new Array();
for(var j = 0; j < 6; j++){
a[i][j] = i + j;
}
}
for(var i = 0; i < 3; i++){
document.write("一維:" + i + "<br>");
for(var j = 0; j < 6; j++){
document.write(a[i][j]);
}
document.write("<br>");
}
for(var i = 0; i < 3; i++){
a[i] = new Array();
for(var j = 0; j < 6; j++){
a[i][j] = i + j;
}
}
for(var i = 0; i < 3; i++){
document.write("一維:" + i + "<br>");
for(var j = 0; j < 6; j++){
document.write(a[i][j]);
}
document.write("<br>");
}
2020-04-15
放在現(xiàn)實(shí)直接：innerHTML = ""，干凈利落！哈哈哈
2020-04-11
let mydate = new Date();
let year = mydate.getFullYear();
let month = mydate.getMonth();
let day = mydate.getDay();
scoreStr 用題目中的.
var scoreArr = scoreStr.split(';');
let score = 0;
for (i = 0; i < scoreArr.length; i++) {
num = scoreArr[i].split(':');
score += parseInt(num[1]);
}
let year = mydate.getFullYear();
let month = mydate.getMonth();
let day = mydate.getDay();
scoreStr 用題目中的.
var scoreArr = scoreStr.split(';');
let score = 0;
for (i = 0; i < scoreArr.length; i++) {
num = scoreArr[i].split(':');
score += parseInt(num[1]);
}
2020-04-10
“不會(huì)了怎么辦”里面“floor()向下取整計(jì)算，它返回的是大于或等于的值”，寫(xiě)錯(cuò)了一個(gè)字，應(yīng)該是“小于或等于”。
2020-04-07
var time = 5;
var set = setInterval(function(){
time--;
var count = document.getElementById("count");
count.innerHTML = time;
if(time===0){
clearInterval(set);
location.href="http://idcbgp.cn/code/1633";
}
},1000);
字?jǐn)?shù)有限，供參考
var set = setInterval(function(){
time--;
var count = document.getElementById("count");
count.innerHTML = time;
if(time===0){
clearInterval(set);
location.href="http://idcbgp.cn/code/1633";
}
},1000);
字?jǐn)?shù)有限，供參考
2020-04-06
HTML塊：<div><span id = "count">5</span>秒后回到主頁(yè)<a target = "_blank" href="javascript:getback()">返回</a></div>
JS塊：var a = 5; var int = setInterval("changeCount()",1000) function changeCount(){ a--;if (a<0) {clearInterval(int);window.history.back()}else{document.getElementById("count").innerHTML = a;} }
JS塊：var a = 5; var int = setInterval("changeCount()",1000) function changeCount(){ a--;if (a<0) {clearInterval(int);window.history.back()}else{document.getElementById("count").innerHTML = a;} }
2020-04-05
var scoreStr = "小明:87;小花:81;小紅:97;小天:76;小張:74;小小:94;小西:90;小伍:76;小迪:64;小曼:76";
scoreStr = scoreStr.split(";");
var sum = 0;
for(var i = 0;i<scoreStr.length;i++){
sum += parseInt(scoreStr[i].slice(3,5));
}
document.write(sum/scoreStr.length);
scoreStr = scoreStr.split(";");
var sum = 0;
for(var i = 0;i<scoreStr.length;i++){
sum += parseInt(scoreStr[i].slice(3,5));
}
document.write(sum/scoreStr.length);
2020-04-04
第三種方法：
var myarr=[88，90，68];
這種方法如何輸出呢
var myarr=[88，90，68];
這種方法如何輸出呢
2020-03-25