console 命令行工具 X clear

console

var a=1;
var b=2;
var c=3;
var d=4;

if(a<b){
    document.write(a+"<br/>");
}



if(a>b){
    document.write(a+"<br/>");
}
else{
    document.write(b+"<br/>");
}



if(a>b){
    document.write(a+"<br/>");
}
else if(a<b){
    document.write(b+"<br/>");
}
else{
    document.write(c+"<br/>");
}



if(a>b){
    document.write(a+"<br/>");
    if(a<b){
      document.write(b+"<br/>");  
    }
    else{
       document.write(c+"<br/>");  
    }
}
else{
    document.write(d+"<br/>");
}

<!DOCTYPE html> 
<html>
<head>
    <meta charset="utf-8" />
    <title></title>
    
</head>
<body>
   <script></script>
</body>
</html>