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1 <!doctype html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <meta name="Generator" content="EditPlus®"> 6 <meta name="Author" content=""> 7 <meta name="Keywords" content=""> 8 <meta name="Description" content=""> 9 <title>倒计时</title> 10 </head> 11 12 <script type="text/javascript"> 13 <!-- 14 h= 0 15 m= 0 16 s= 30 17 18 function cal() 19 { 20 --s 21 if (s < 0) 22 { 23 --m 24 s= 59 25 } 26 if (m < 0) 27 { 28 --h 29 m= 59 30 } 31 if(h>=0) document.aa.t1.value= h+": "+m+": "+s 32 else { 33 alert("考试结束，恭喜你撑到了最后！") 34 num= 8 35 s= "Do you want to anymore? \n " 36 hehe= "0.0 " 37 haha= "~.~ " 38 for(i=1; i<=num; ++i) { 39 str= s 40 for(j=1; j<=i; ++j) str= str+ ( Math.random( )< 0.5 ? hehe: haha ) 41 alert ( str ) 42 } 43 return 44 } 45 setTimeout("cal()",200) 46 } 47 //--> 48 </script> 49 50 <body bgcolor= #33ffff> 51 <form name="aa"> 52 距离考试结束还剩下： 53 <input type=text name="t1"> 54 </form> 55 <SCRIPT LANGUAGE="JavaScript"> 56 <!-- 57 cal() 58 //--> 59 </SCRIPT> 60 </body> 61 </html>
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原文地址：http://www.cnblogs.com/Newdawn/p/4396312.html
