缺c币的都来回答吧,请教各位javascript里怎么打印99乘法表?
1*1 = 1
2 * 1 = 1 2*2 = 4
3 * 1 = 1 3 * 2 = 6 3 * 3 = 9
...
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>九九乘法表</title>
<style>
div{
text-align: center;
width: 1210px;
margin: 0 auto;
}
table{
margin: 0 auto;
border: 4px solid green;
padding: 5px;
}
td{
border: 1px solid green;
color: blue;
}
</style>
</head>
<body>
<script>
// 打印9*9乘法表
document.write("<div>");
document.write("<h3>"+"九九乘法表"+"</H3>")
document.write('<table>');//添加table开始标签
for(var i =1;i<=9;i++){
document.write('<tr>');//添加tr开始标签
for(var j=1;j<=i;j++){
document.write("<td>"+i+"※"+j+"="+i*j+"</td>");//让其在td标签中显示
}
document.write("</tr>")//添加tr结束标签
}
document.write('</table>');//添加table结束标签
document.write('</div>');
</script>
</body>
</html>
public static void main(String[] args) {
for (int i = 1; i <=9; i++) {
for (int j = 1; j <=i; j++) {
System.out.print(j+"*"+i+"="+(i*j)+"\t");
}
System.out.println();
}
}
console界面:
for(var i=1;i<10;i++)
{
var str="";
for(var j=1;j<=i;j++)
{
str+=" "+j+"*"+i+"="+i*j
}
console.log(str)
}
var str=''; for (i=1; i<=9;i++) { for(j=1;j<=i;j++) { if (i>j) { str +=j+'*'+i+'='+j*i+' '; } else { str +=i+'*'+j+'='+j*i+' '; } } str+='\n'; } alert(str);
<!DOCTYPE html>
//打印99乘法表 for (var n=1;n<=9;n++) { for (var m=1;m<n+1;m++) { var b=m*n; document.write(m+"×"+n+"="+b+" "+" "); } document.write("<br/>"); document.write("<br/>"); }for(var i=1;i<10;i++)
{
var str="";
for(var j=1;j<=i;j++)
{
str+=" "+j+"*"+i+"="+i*j
}
console.log(str)
}
<script type="text/javascript">
for (var i = 1; i <= 9; i++) {
for (var j = 1; j <= i; j++)
document.write(j+"*"+i+"="+j*i+" ");
document.write("<br>");
}
</script>
var i , j; for(i = 1;i <= 9;i ++){ document.write("<br data-filtered="filtered">"); // i 为行的乘数,j 为列数 每一行打印完后换行 for(j = 1;j <= i;j ++){ sum = i * j; document.write(i ,"*",j ,"=",sum,""); // 使 "i" 和 "j" 能打印出来 } }var i, j; document.write("<tr><td></td>"); for (i=1;i<=9;i++) document.write("<td><b>" + i + "</b></td>"); document.write("<tr>"); for (i=1;i<=9;i++){ document.write("<tr>"); document.write("<td><b>" + i + "</b></td>"); j = 1; while (j <= 9){ document.write("<td>"); document.write(i + "*" + j + "=" + i*j); document.write("</td>"); j++; } document.write("<tr>"); }程序:var str=''; for (i=1; i<=9;i++) { for(j=1;j<=i;j++) { if (i>j) { str +=j+'*'+i+'='+j*i+' '; } else { str +=i+'*'+j+'='+j*i+' '; } } str+='\n'; } alert(str);
<!DOCTYPE html>
for (var i = 1; i <= 9; i++) {
for (var j = 1; j <= i; j++)
document.write(j+"*"+i+"="+j*i+" ");
document.write("
");
}
没他们写的那么复杂,js是兼容java的,其实就是把主要的程序块放到js里,然后做个输出就好了
var str=''; for (i=1; i<=9;i++) { for(j=1;j<=i;j++) { if (i>j) { str +=j+''+i+'='+ji+' '; } else { str +=i+''+j+'='+ji+' '; } } str+='\n'; } alert(str);