本文实例讲述了php+ajax实现仿百度查询下拉内容功能。分享给大家供大家参考,具体如下:
运行效果如下:
html代码:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
<!doctype html>
<html lang= "en" >
<head>
<meta charset= "utf-8" >
<title>document</title>
<script src= "https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js" ></script>
<style type= "text/css" >
body{
margin:0;
padding: 0;
}
form{
width: 500px;
margin:40px auto;
}
.search-wrap{
position: relative;
}
li{
padding: 0;
padding-left: 10px;
list-style: none;
}
li:hover{
background-color: #ccc;
color: #fff;
cursor: pointer;
}
#xiala{
position: absolute;
top: 40px;
left: 0;
background-color: #c2c2c2;
width: 200px;
margin:0;
padding: 0 ;
display: none;
}
</style>
</head>
<body>
<form action= "" >
<div class = "search-wrap" >
<input type= "text" id= "search" >
<ul id= "xiala" >
</ul>
<input type= "button" value= "go" id= "sousuo" >
<div id= "searval" style= "display:inline-block;border:1px solid #ccc" ></div>
</div>
</form>
</body>
<script type= "text/javascript" >
var search=$( "#search" );
search.on( "input" , function (){ //输入框内容改变发请求
$.ajax({
url: 'a.txt' ,
type: 'get' ,
async:true,
data:{value:$( "#search" ).val()},
success: function (data){
var arr=data.split( ',' );
console.log(arr);
$( "#xiala" ).html( "" );
$.each(arr, function (i,n){
var oli=$( "<li>" +arr[i]+ "</li>" );
$( "#xiala" ).append(oli);
$( "#xiala" ).css( "display" , "block" );
})
}
});
$( "#xiala" ).css( "display" , "block" ); //内容改变下拉框显示
$( "#searval" ).html(search.val())
})
function stoppropagation(e) {
if (e.stoppropagation){
e.stoppropagation();
} else {
e.cancelbubble = true;
}
}
$(document).on( 'click' , function (){ //点击页面的时候下拉框隐藏
$( "#xiala" ).css( "display" , "none" );
});
$(document).on( "click" , "#xiala li" , function (){ //点击下拉框选项的时候改变输入框的值
search.val($(this).text());
$( "#searval" ).html($(this).text());
$( "#xiala" ).css( "display" , "none" );
})
</script>
</html>
|
a.txt内容:
1
|
a,b,c,d,e,f,g
|
希望本文所述对大家php程序设计有所帮助。
原文链接:http://blog.csdn.net/haibo0668/article/details/78211523