系统时间的友好显示

    var oBody = document.body;
    
    setInterval( fnTime, 1000 );
    
    fnTime ();
    
    function fnTime () {
    
        var myTime = new Date();    //object
        
        // number
        var iYear = myTime.getFullYear();
        var iMonth = myTime.getMonth()+1;
        var iDate = myTime.getDate();
        var iWeek = myTime.getDay();
        var iHours = myTime.getHours();
        var iMin = myTime.getMinutes();
        var iSec = myTime.getSeconds();
        var str = '';
        
        if( iWeek === 0 ) iWeek = '星期日';
        if( iWeek === 1 ) iWeek = '星期一';
        if( iWeek === 2 ) iWeek = '星期二';
        if( iWeek === 3 ) iWeek = '星期三';
        if( iWeek === 4 ) iWeek = '星期四';
        if( iWeek === 5 ) iWeek = '星期五';
        if( iWeek === 6 ) iWeek = '星期六';
        
        str = iYear+ '年' +iMonth+'月'+iDate+'日 '+iWeek+' '+ toTwo(iHours)+' : '+ toTwo(iMin)+' : '+ toTwo(iSec);
        
        oBody.innerHTML = str;
    
    }
};

function toTwo ( n ) {
    return n < 10 ?  '0' + n : '' + n;
}