1. 在同一页面中
跳转到add
2. 在不同页面中,锚点定位在a.html中,从另外一个页面的链接跳转到这个锚点
跳转到a.add
3. 点击链接触发js事件,同时跳转到锚点,有两种处理方式:
第一种:
触发add函数并跳转到add锚点
第二种:
通过scrollIntoView实现锚点效果
在html中设置锚点定位有几种方法,使用id定位、使用name定位、使用js定位,这些方法不一定是最全的,只可以参考下
1、使用id定位:
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|
<
a
href
=
"#1F"
name
=
"1F"
>锚点1
a
>
<
p
name
=
"1F"
>
<
p
>
11111111111
br
>
11111111111
br
>11111111111
br
>11111111111
br
>11111111111
br
>
p
>
p
>
|
这样的定位可以针对任何标签来定位。
2、使用name定位:
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2
3
|
<
a
href
=
"#5F"
>锚点5
a
>
br
>
br
>
br
>
br
>
br
>
br
>
br
>
br
>
br
>
br
>
br
>
br
>
br
>
br
>
br
>
br
>
br
>
br
>
br
>
<
a
name
=
"5F"
>1111111
href
>
|
使用name属性只能针对a标签来定位,而对p等其他标签就不能起到定位作用。
3、使用js定位
1
|
<
li
class
=
""
onclick
=
"javascript:document.getElementById('here').scrollIntoView()"
>
li
>
|
实例:
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<
head
>
<
style
type
=
"text/css"
mce_bogus
=
"1"
>
p.test {
width: 400px;
margin: 5px auto;
border: 1px solid #ccc;
}
p.test strong {
font-size: 16px;
background: #fff;
border-bottom: 1px solid #aaa;
margin: 0;
display: block;
padding: 5px 0;
text-decoration: underline;
color: #059B9A;
cursor: pointer;
}
p.test p {
height: 400px;
background: #f1f1f1;
margin: 0;
}
style
>
<
script
type
=
"text/javascript"
>
function intval(v){
v = parseInt(v);
return isNaN(v) ? 0 : v;
} // ?取元素信息
function getPos(e){
var l = 0;
var t = 0;
var w = intval(e.style.width);
var h = intval(e.style.height);
var wb = e.offsetWidth;
var hb = e.offsetHeight;
while (e.offsetParent) {
l += e.offsetLeft + (e.currentStyle ? intval(e.currentStyle.borderLeftWidth) : 0);
t += e.offsetTop + (e.currentStyle ? intval(e.currentStyle.borderTopWidth) : 0);
e = e.offsetParent;
}
l += e.offsetLeft + (e.currentStyle ? intval(e.currentStyle.borderLeftWidth) : 0);
t += e.offsetTop + (e.currentStyle ? intval(e.currentStyle.borderTopWidth) : 0);
return {
x: l,
y: t,
w: w,
h: h,
wb: wb,
hb: hb
};
} // ?取??条信息
function getScroll(){
var t, l, w, h;
if (document.documentElement && document.documentElement.scrollTop) {
t = document.documentElement.scrollTop;
l = document.documentElement.scrollLeft;
w = document.documentElement.scrollWidth;
h = document.documentElement.scrollHeight;
}
else
if (document.body) {
t = document.body.scrollTop;
l = document.body.scrollLeft;
w = document.body.scrollWidth;
h = document.body.scrollHeight;
}
return {
t: t,
l: l,
w: w,
h: h
};
} // ?点(Anchor)?平滑跳?
function scroller(el, duration){
if (typeof el != 'object') {
el = document.getElementById(el);
}
if (!el)
return;
var z = this;
z.el = el;
z.p = getPos(el);
z.s = getScroll();
z.clear = function(){
window.clearInterval(z.timer);
z.timer = null
};
z.t = (new Date).getTime();
z.step = function(){
var t = (new Date).getTime();
var p = (t - z.t) / duration;
if (t >= duration + z.t) {
z.clear();
window.setTimeout(function(){
z.scroll(z.p.y, z.p.x)
}, 13);
}
else {
st = ((-Math.cos(p * Math.PI) / 2) + 0.5) * (z.p.y - z.s.t) + z.s.t;
sl = ((-Math.cos(p * Math.PI) / 2) + 0.5) * (z.p.x - z.s.l) + z.s.l;
z.scroll(st, sl);
}
};
z.scroll = function(t, l){
window.scrollTo(l, t)
};
z.timer = window.setInterval(function(){
z.step();
}, 13);
}
script
>
head
>
<
body
>
<
p
class
=
"test"
>
<
a
name
=
"header_1"
id
=
"header_1"
>
a
>
<
strong
onclick
=
"javascript:scroller('header_4', 800);"
>header_1 --> header_4
strong
>
<
p
>
p
>
p
>
<
p
class
=
"test"
>
<
a
name
=
"header_2"
id
=
"header_2"
>
a
>
<
strong
onclick
=
"javascript:scroller('header_5', 800);"
>header_2 --> header_5
strong
>
<
p
>
p
>
p
>
<
p
class
=
"test"
>
<
a
name
=
"header_3"
id
=
"header_3"
>
a
>
<
strong
onclick
=
"javascript:scroller('header_6', 800);"
>header_3 --> header_6
strong
>
<
p
>
p
>
p
>
<
p
class
=
"test"
>
<
a
name
=
"header_4"
id
=
"header_4"
>
a
>
<
strong
onclick
=
"javascript:scroller('header_7', 800);"
>header_4 --> header_7
strong
>
<
p
>
p
>
p
>
<
p
class
=
"test"
>
<
a
name
=
"header_5"
id
=
"header_5"
>
a
>
<
strong
onclick
=
"javascript:scroller('header_3', 800);"
>header_5 --> header_3
strong
>
<
p
>
p
>
p
>
<
p
class
=
"test"
>
<
a
name
=
"header_6"
id
=
"header_6"
>
a
>
<
strong
onclick
=
"javascript:scroller('header_2', 800);"
>header_6 --> header_2
strong
>
<
p
>
p
>
p
>
<
p
class
=
"test"
>
<
a
name
=
"header_7"
id
=
"header_7"
>
a
>
<
strong
onclick
=
"javascript:scroller('header_1', 800);"
>header_7 --> header_1
strong
>
<
p
>
p
>
p
>
body
>
html
>
|
以上就是html 锚点三种实现方法的详细内容,更多请关注php中文网其它相关文章!