一个估算世界人口数量的脚本
一个估算世界人口数量的脚本，可是有科学依据的，不会差多少

使用说明

步骤一: 请将下面的原代码插入到<body>下面 ,


<SCRIPT LANGUAGE="JavaScript">



<!-- Begin

var worldpop = 6080141683;

// US Census estimate on 7/1/00

m = 7

d = 1

yr = 2000



var montharray=new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec");

var today=new Date();

var todayy=today.getYear();



// Y2K Fix by Isaac Powell

// http://onyx.idbsu.edu/~ipowell



if ((navigator.appName == "Microsoft Internet Explorer") && (todayy < 2000))

todayy="19" + todayy;

if (navigator.appName == "Netscape")

todayy = 1900 + todayy;

function outputComma(number) { // (c) irt.org

number = '' + number;

if (number.length > 3) {

var mod = number.length%3;

var output = (mod > 0 ? (number.substring(0,mod)) : '');

for (i=0 ; i < Math.floor(number.length/3) ; i++) {

if ((mod ==0) && (i ==0))

output += number.substring(mod+3*i,mod+3*i+3);

else

output += ',' + number.substring(mod+3*i,mod+3*i+3);

}

return (output);

}

else return number;

}

var todaym = today.getMonth();

var todayd = today.getDate();

var todaystring = new Date();

var paststring = montharray[m-1]+" "+d+", "+yr;

growth = Math.floor(2.6*(Math.round((Date.parse(todaystring)-Date.parse(paststring))/(1000))*1));

document.write("World Population is estimated to be: <b>" + outputComma(worldpop+growth) + "</b>");

// End -->

</script>