关于焦点图,现在代码效果当向右移动至最后一张时,再点击直接跳回第一张,怎么改才能让过度效果一样 切换回第一张图,没有跳转的效果
$(function () {
var sWidth = $("#focus").width();
var len = $("#focus ul li").length;
var index = 0;
var picTimer;
var btn = "<div class='btnBg'></div><div class='btn'>";
for (var i = 0; i < len; i++) {
btn += "<span></span>";
}
btn += "</div><div class='preNext pre'></div><div class='preNext next'></div>";
$("#focus").append(btn);
$("#focus .btnBg").css("opacity", 1);
$("#focus .btn span").css("opacity", 1).mouseenter(function () {
index = $("#focus .btn span").index(this);
showPics(index);
}).eq(0).trigger("mouseenter");
$("#focus .preNext").css("opacity", 1).hover(function () {
$(this).stop(true, false).animate({ "opacity": "1" }, 300);
}, function () {
$(this).stop(true, false).animate({ "opacity": "1" }, 300);
});
$("#focus .pre").click(function () {
index -= 1;
if (index == -1) { index = len - 1; }
showPics(index);
});
$("#focus .next").click(function () {
index += 1;
if (index == len) { index = 0; }
showPics(index);
});
$("#focus ul").css("width", sWidth * (len)); function showPics(index) {
var nowLeft = -index * sWidth;
$("#focus ul").stop(true, false).animate({ "left": nowLeft }, 300);
$("#focus .btn span").stop(true, false).animate({ "opacity": "1" }, 300).eq(index).stop(true, false).animate({ "opacity": "1" }, 300);
}
});javascriptJQuery
$(function () {
var sWidth = $("#focus").width();
var len = $("#focus ul li").length;
var index = 0;
var picTimer;
var btn = "<div class='btnBg'></div><div class='btn'>";
for (var i = 0; i < len; i++) {
btn += "<span></span>";
}
btn += "</div><div class='preNext pre'></div><div class='preNext next'></div>";
$("#focus").append(btn);
$("#focus .btnBg").css("opacity", 1);
$("#focus .btn span").css("opacity", 1).mouseenter(function () {
index = $("#focus .btn span").index(this);
showPics(index);
}).eq(0).trigger("mouseenter");
$("#focus .preNext").css("opacity", 1).hover(function () {
$(this).stop(true, false).animate({ "opacity": "1" }, 300);
}, function () {
$(this).stop(true, false).animate({ "opacity": "1" }, 300);
});
$("#focus .pre").click(function () {
index -= 1;
if (index == -1) { index = len - 1; }
showPics(index);
});
$("#focus .next").click(function () {
index += 1;
if (index == len) { index = 0; }
showPics(index);
});
$("#focus ul").css("width", sWidth * (len)); function showPics(index) {
var nowLeft = -index * sWidth;
$("#focus ul").stop(true, false).animate({ "left": nowLeft }, 300);
$("#focus .btn span").stop(true, false).animate({ "opacity": "1" }, 300).eq(index).stop(true, false).animate({ "opacity": "1" }, 300);
}
});javascriptJQuery
$(this).stop(true, false).animate({ "opacity": "1" }, 300);
}, function () {
$(this).stop(true, false).animate({ "opacity": "1" }, 300);
});
$("#focus .pre").click(function () {
index -= 1;
if (index == -1) { index = len - 1; }
showPics(index);
});
$("#focus .next").click(function () {
index += 1;
if (index == len) { index = 0; }
showPics(index);
});pre为向左,next向右,
index += 1;
//////////////////////////
if (index == len) { index = 0; $("#focus ul").stop(true, false).css({ "left": 0 });
return
}
//////////////////////////
showPics(index);
});