这是部分代码，其中锚点似乎不起作用，当我点击移动P，L，C ，选择＆amp;放置或方法＆amp;在课程部分离开，它不会移动到我希望它去的部分。
<div class="bb-item" id="item2">
<div class="content">
<div class="scroller">
<h2>Lessons</h2>
<p><a href="#item3" class="button" >Move P, L, C</a></p>
<p> <a href="#item4" class="button">Pick and place</a> </p>
<p><a href="#item5" class="button">Approach and depart</a></p>
</div>
</div>
</div>
<div class="bb-item" id="item3">
<div class="content">
<div class="scroller">
<a name="item3"></a>
<h2> Move P, L, C</h2>
</div>
</div>
</div>
这是javascript
(function() {
var event = jQuery.event,
//helper that finds handlers by type and calls back a function, this is basically handle
// events - the events object
// types - an array of event types to look for
// callback(type, handlerFunc, selector) - a callback
// selector - an optional selector to filter with, if there, matches by selector
// if null, matches anything, otherwise, matches with no selector
findHelper = function( events, types, callback, selector ) {
var t, type, typeHandlers, all, h, handle,
namespaces, namespace,
match;
for ( t = 0; t < types.length; t++ ) {
type = types[t];
all = type.indexOf(".") < 0;
if (!all ) {
namespaces = type.split(".");
type = namespaces.shift();
namespace = new RegExp("(^|\\.)" + namespaces.slice(0).sort().join("\\.(?:.*\\.)?") + "(\\.|$)");
}
typeHandlers = (events[type] || []).slice(0);
for ( h = 0; h < typeHandlers.length; h++ ) {
handle = typeHandlers[h];
match = (all || namespace.test(handle.namespace));
if(match){
if(selector){
if (handle.selector === selector ) {
callback(type, handle.origHandler || handle.handler);
}
} else if (selector === null){
callback(type, handle.origHandler || handle.handler, handle.selector);
}
else if (!handle.selector ) {
callback(type, handle.origHandler || handle.handler);
}
}
}
}
};
/**
* Finds event handlers of a given type on an element.
* @param {HTMLElement} el
* @param {Array} types an array of event names
* @param {String} [selector] optional selector
* @return {Array} an array of event handlers
*/
event.find = function( el, types, selector ) {
var events = ( $._data(el) || {} ).events,
handlers = [],
t, liver, live;
if (!events ) {
return handlers;
}
findHelper(events, types, function( type, handler ) {
handlers.push(handler);
}, selector);
return handlers;
};
/**
* Finds all events. Group by selector.
* @param {HTMLElement} el the element
* @param {Array} types event types
*/
event.findBySelector = function( el, types ) {
var events = $._data(el).events,
selectors = {},
//adds a handler for a given selector and event
add = function( selector, event, handler ) {
var select = selectors[selector] || (selectors[selector] = {}),
events = select[event] || (select[event] = []);
events.push(handler);
};
if (!events ) {
return selectors;
}
//first check live:
/*$.each(events.live || [], function( i, live ) {
if ( $.inArray(live.origType, types) !== -1 ) {
add(live.selector, live.origType, live.origHandler || live.handler);
}
});*/
//then check straight binds
findHelper(events, types, function( type, handler, selector ) {
add(selector || "", type, handler);
}, null);
return selectors;
};
event.supportTouch = "ontouchend" in document;
$.fn.respondsTo = function( events ) {
if (!this.length ) {
return false;
} else {
//add default ?
return event.find(this[0], $.isArray(events) ? events : [events]).length > 0;
}
};
$.fn.triggerHandled = function( event, data ) {
event = (typeof event == "string" ? $.Event(event) : event);
this.trigger(event, data);
return event.handled;
};
/**
* Only attaches one event handler for all types ...
* @param {Array} types llist of types that will delegate here
* @param {Object} startingEvent the first event to start listening to
* @param {Object} onFirst a function to call
*/
event.setupHelper = function( types, startingEvent, onFirst ) {
if (!onFirst ) {
onFirst = startingEvent;
startingEvent = null;
}
var add = function( handleObj ) {
var bySelector, selector = handleObj.selector || "";
if ( selector ) {
bySelector = event.find(this, types, selector);
if (!bySelector.length ) {
$(this).delegate(selector, startingEvent, onFirst);
}
}
else {
//var bySelector = event.find(this, types, selector);
if (!event.find(this, types, selector).length ) {
event.add(this, startingEvent, onFirst, {
selector: selector,
delegate: this
});
}
}
},
remove = function( handleObj ) {
var bySelector, selector = handleObj.selector || "";
if ( selector ) {
bySelector = event.find(this, types, selector);
if (!bySelector.length ) {
$(this).undelegate(selector, startingEvent, onFirst);
}
}
else {
if (!event.find(this, types, selector).length ) {
event.remove(this, startingEvent, onFirst, {
selector: selector,
delegate: this
});
}
}
};
$.each(types, function() {
event.special[this] = {
add: add,
remove: remove,
setup: function() {},
teardown: function() {}
};
});
};
})(jQuery);
(function($){
var isPhantom = /Phantom/.test(navigator.userAgent),
supportTouch = !isPhantom && "ontouchend" in document,
scrollEvent = "touchmove scroll",
// Use touch events or map it to mouse events
touchStartEvent = supportTouch ? "touchstart" : "mousedown",
touchStopEvent = supportTouch ? "touchend" : "mouseup",
touchMoveEvent = supportTouch ? "touchmove" : "mousemove",
data = function(event){
var d = event.originalEvent.touches ?
event.originalEvent.touches[ 0 ] :
event;
return {
time: (new Date).getTime(),
coords: [ d.pageX, d.pageY ],
origin: $( event.target )
};
};
/**
* @add jQuery.event.swipe
*/
var swipe = $.event.swipe = {
/**
* @attribute delay
* Delay is the upper limit of time the swipe motion can take in milliseconds. This defaults to 500.
*
* A user must perform the swipe motion in this much time.
*/
delay : 500,
/**
* @attribute max
* The maximum distance the pointer must travel in pixels. The default is 75 pixels.
*/
max : 75,
/**
* @attribute min
* The minimum distance the pointer must travel in pixels. The default is 30 pixels.
*/
min : 30
};
$.event.setupHelper( [
/**
* @hide
* @attribute swipe
*/
"swipe",
/**
* @hide
* @attribute swipeleft
*/
'swipeleft',
/**
* @hide
* @attribute swiperight
*/
'swiperight',
/**
* @hide
* @attribute swipeup
*/
'swipeup',
/**
* @hide
* @attribute swipedown
*/
'swipedown'], touchStartEvent, function(ev){
var
// update with data when the event was started
start = data(ev),
stop,
delegate = ev.delegateTarget || ev.currentTarget,
selector = ev.handleObj.selector,
entered = this;
function moveHandler(event){
if ( !start ) {
return;
}
// update stop with the data from the current event
stop = data(event);
// prevent scrolling
if ( Math.abs( start.coords[0] - stop.coords[0] ) > 10 ) {
event.preventDefault();
}
};
// Attach to the touch move events
$(document.documentElement).bind(touchMoveEvent, moveHandler)
.one(touchStopEvent, function(event){
$(this).unbind( touchMoveEvent, moveHandler);
// if start and stop contain data figure out if we have a swipe event
if ( start && stop ) {
// calculate the distance between start and stop data
var deltaX = Math.abs(start.coords[0] - stop.coords[0]),
deltaY = Math.abs(start.coords[1] - stop.coords[1]),
distance = Math.sqrt(deltaX*deltaX+deltaY*deltaY);
// check if the delay and distance are matched
if ( stop.time - start.time < swipe.delay && distance >= swipe.min ) {
var events = ['swipe'];
// check if we moved horizontally
if( deltaX >= swipe.min && deltaY < swipe.min) {
// based on the x coordinate check if we moved left or right
events.push( start.coords[0] > stop.coords[0] ? "swipeleft" : "swiperight" );
} else
// check if we moved vertically
if(deltaY >= swipe.min && deltaX < swipe.min){
// based on the y coordinate check if we moved up or down
events.push( start.coords[1] < stop.coords[1] ? "swipedown" : "swipeup" );
}
// trigger swipe events on this guy
$.each($.event.find(delegate, events, selector), function(){
this.call(entered, ev, {start : start, end: stop})
})
}
}
// reset start and stop
start = stop = undefined;
})
});
})(jQuery)
答案 0 :(得分：0)
这里更新了ans
<div class="bb-item" id="item2">
<div class="content">
<div class="scroller">
<h2>Lessons</h2>
<p><a href="#item3" class="button">Move P, L, C</a></p>
<p> <a href="#item4" class="button">Pick and place</a> </p>
<p><a href="#item5" class="button">Approach and depart</a></p>
</div>
</div>
</div>
<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>
<div class="bb-item" id="item3">
<div class="content">
<div class="scroller">
<h2> Move P, L, C</h2>
</div>
</div>
</div>
<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>
<div class="bb-item" id="item4">
<div class="content">
<div class="scroller">
<h2>Pick and place</h2>
</div>
</div>
</div>
<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>
<div class="bb-item" id="item5">
<div class="content">
<div class="scroller">
<h2>Approach and depart</h2>
</div>
</div>
</div>