1 <!DOCTYPE HTML> 2 <html> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 5 <title>无标题文档</title> 6 7 <script> 8 // alert( new Date() ); // 当前系统的时间对象 9 10 // myTime typeof object 11 12 window.onload = function () { 13 14 var oBody = document.body; 15 16 setInterval( fnTime, 1000 ); 17 18 fnTime (); 19 20 function fnTime () { 21 22 var myTime = new Date(); 23 24 // number 25 var iYear = myTime.getFullYear(); 26 var iMonth = myTime.getMonth()+1; 27 var iDate = myTime.getDate(); 28 var iWeek = myTime.getDay(); 29 var iHours = myTime.getHours(); 30 var iMin = myTime.getMinutes(); 31 var iSec = myTime.getSeconds(); 32 var str = ''; 33 34 if( iWeek === 0 ) iWeek = '星期日'; 35 if( iWeek === 1 ) iWeek = '星期一'; 36 if( iWeek === 2 ) iWeek = '星期二'; 37 if( iWeek === 3 ) iWeek = '星期三'; 38 if( iWeek === 4 ) iWeek = '星期四'; 39 if( iWeek === 5 ) iWeek = '星期五'; 40 if( iWeek === 6 ) iWeek = '星期六'; 41 42 str = iYear+ '年' +iMonth+'月'+iDate+'日 '+iWeek+' '+ toTwo(iHours)+' : '+ toTwo(iMin)+' : '+ toTwo(iSec); 43 44 oBody.innerHTML = str; 45 46 } 47 }; 48 49 // alert( toTwo(5) ); // '05' 50 // alert( toTwo(15) ); // '15' 51 52 function toTwo ( n ) { 53 return n < 10 ? '0' + n : '' + n; 54 } 55 56 </script> 57 58 </head> 59 60 <body style="font-size:60px;"> 61 </body> 62 </html> 63