time.html代碼: 
復制代碼 代碼如下:
 
<!doctype html> 
<html lang="en"> 
<head> 
<meta charset="UTF-8"> 
<meta content="EditPlus®"> 
<meta content=""> 
<meta content=""> 
<meta content=""> 
<title>Document</title> 
<script type="text/javascript" src="jquery-1.8.2.min.js"></script> 
<script type="text/javascript" src="time.js"></script> 
</head> 
<body> 
<input type="button" value="小時加"> 
<input type="text" value="00"> 
<input type="button" value="小時減"> 
<br/> 
<br/> 
<input type="button" value="分鐘加"> 
<input type="text" value="00"> 
<input type="button" value="分鐘減"> 
</body> 
</html> 
復制代碼 代碼如下:
 
function add_num(a,b,c){ 
if(c<a){ 
c++; 
} 
else{ 
c=b; 
} 
if(c<=9&&c>=0){ 
c="0"+c; 
} 
return c; 
} 
function sub_num(a,b,c){ 
if(c>a){ 
c--; 
} 
else{ 
c=b; 
} 
if(c<=9&&c>=0){ 
c="0"+c; 
} 
return c; 
} 
function add_hour(){ 
var current_num=$("#hour").attr("value"); 
current_num=add_num(23,0,current_num); 
$("#hour").attr("value",current_num); 
} 
function sub_hour(){ 
var current_num=$("#hour").attr("value"); 
current_num=sub_num(0,23,current_num); 
$("#hour").attr("value",current_num); 
} 
function add_minute(){ 
var current_num=$("#minute").attr("value"); 
current_num=add_num(59,0,current_num); 
$("#minute").attr("value",current_num); 
} 
function sub_minute(){ 
var current_num=$("#minute").attr("value"); 
current_num=sub_num(0,59,current_num); 
$("#minute").attr("value",current_num); 
} 
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