SOURCE

var score=100;
if(score>60)
{
document.write("通过测试");
}
document.write("<br/>-------------------<br/>");

var score = 59;
if (score < 60) 
{
document.write("需要补考");
} 
else {
document.write("通过测试");
}
document.write("<br/>-------------------<br/>");

var time =14;
if (time < 12)
{
document.write("早上好！"); 
}
else if (time >=12 && time < 18)
{
document.write("下午好！");
}
else
{
document.write("晚上好！"); 
}
document.write("<br/>-------------------<br/>");

var gender = "女";
var height = 165;
if(gender=="男")
{
if(height>170)
{
document.write("高个子男生");
}
else
{
document.write("矮个子男生");
}
}
else
{
if (height > 170)
{
document.write("高个子女生");
}
else
{
document.write("矮个子女生");
}
}

document.write("<br/>-------------------<br/>");



function isInteger(num)
{
var result=false;
if(parseInt(num) == parseFloat(num)){
return true;
}
return result;
}
var num=15;
if(isInteger(num)){
document.write(num+" 是个整数"+"<br/>");
}else{
document.write(num+" 是个小数."+"<br/>");
}

document.write("<br/>-------------------<br/>");

//判断数是不是小数
function isDecimal (num)
{
var result=false;
if(parseInt(num) != parseFloat(num))
{
return true;
}
return result;
}
var num=15.5;
if(isDecimal(num)){
document.write(num+" 是个小数"+"<br/>");
}else{
document.write(num+"不是小数."+"<br/>");
}


document.write("<br/>-------------------<br/>");


//判断水仙花数
function printDaffodiNum()
{
document.write("打印水仙花数:"+"<br/>");
for(var num=100;num<1000;num++)
{
var a=num%10;
var b=parseInt((num/10)%10);  
var c=parseInt(num/100);
if (num == (a*a*a+b*b*b+c*c*c)) 
{
//打印水仙花数
document.write(num+"<br/>")
}
}
}
printDaffodiNum();