一个简单的网站主页
主要由html+css+js制作
1.图片展示
这是首页的上半部分,主要内容有:顶部标头、顶部导航栏、图片轮播图。
2.代码展示
index.html
我们的恋爱小屋window.οnlοad=function(){
var wrap=document.getElementById('wrap'),
pic=document.getElementById('pic').getElementsByTagName("li"),
list=document.getElementById('list').getElementsByTagName('li'),
index=0,
timer=null;
// 定义并调用自动播放函数
timer = setInterval(autoPlay, 2000);
// 鼠标划过整个容器时停止自动播放
wrap.onmouseover = function () {
clearInterval(timer);
}
// 鼠标离开整个容器时继续播放至下一张
wrap.onmouseout = function () {
timer = setInterval(autoPlay, 2000);
}
// 遍历所有数字导航实现划过切换至对应的图片
for (var i = 0; i < list.length; i++) {
list[i].onmouseover = function () {
clearInterval(timer);
index = this.innerText - 1;
changePic(index);
};
};
function autoPlay () {
if (++index >= pic.length) index = 0;
changePic(index);
}
// 定义图片切换函数
function changePic (curIndex) {
for (var i = 0; i < pic.length; ++i) {
pic[i].style.display = "none";
list[i].className = "";
}
pic[curIndex].style.display = "block";
list[curIndex].className = "on";
}
};
——夏洛蒂 勃朗特 《简爱》
//定义画布宽高和生成点的个数
var WIDTH = window.innerWidth,
HEIGHT = window.innerHeight,
POINT = 35;
var canvas = document.getElementById('Mycanvas');
canvas.width = WIDTH,
canvas.height = HEIGHT;
var context = canvas.getContext('2d');
context.strokeStyle = 'rgba(255,255,255,255.255)',
context.strokeWidth = 1,
context.fillStyle = 'rgba(255,255,255,255.255)';
var circleArr = [];
//线条:开始xy坐标,结束xy坐标,线条透明度
function Line(x, y, _x, _y, o) {
this.beginX = x,
this.beginY = y,
this.closeX = _x,
this.closeY = _y,
this.o = o;
}
//点:圆心xy坐标,半径,每帧移动xy的距离
function Circle(x, y, r, moveX, moveY) {
this.x = x,
this.y = y,
this.r = r,
this.moveX = moveX,
this.moveY = moveY;
}
//生成max和min之间的随机数
function num(max, _min) {
var min = arguments[1] || 0;
return Math.floor(Math.random() * (max - min + 1) + min);
}
// 绘制原点
function drawCricle(cxt, x, y, r, moveX, moveY) {
var circle = new Circle(x, y, r, moveX, moveY)
cxt.beginPath()
cxt.arc(circle.x, circle.y, circle.r, 0, 2 * Math.PI)
cxt.closePath()
cxt.fill();
return circle;
}
//绘制线条
function drawLine(cxt, x, y, _x, _y, o) {
var line = new Line(x, y, _x, _y, o)
cxt.beginPath()
cxt.strokeStyle = 'rgba(255,255,255,' + o + ')'
cxt.moveTo(line.beginX, line.beginY)
cxt.lineTo(line.closeX, line.closeY)
cxt.closePath()
cxt.stroke();
}
//每帧绘制
function draw() {
context.clearRect(0, 0, canvas.width, canvas.height);
for(var i = 0; i < POINT; i++) {
drawCricle(context, circleArr[i].x, circleArr[i].y, circleArr[i].r);
}
for(var i = 0; i < POINT; i++) {
for(var j = 0; j < POINT; j++) {
if(i + j < POINT) {
var A = Math.abs(circleArr[i + j].x - circleArr[i].x),
B = Math.abs(circleArr[i + j].y - circleArr[i].y);
var lineLength = Math.sqrt(A * A + B * B);
var C = 1 / lineLength * 7 - 0.009;
var lineOpacity = C > 0.03 ? 0.03 : C;
if(lineOpacity > 0) {
drawLine(context, circleArr[i].x, circleArr[i].y, circleArr[i + j].x, circleArr[i + j].y, lineOpacity);
}
}
}
}
}
//初始化生成原点
function init() {
circleArr = [];
for(var i = 0; i < POINT; i++) {
circleArr.push(drawCricle(context, num(WIDTH), num(HEIGHT), num(15, 2), num(10, -10) / 40, num(10, -10) / 40));
}
draw();
}
//调用执行
window.onload = function() {
init();
setInterval(function() {
for(var i = 0; i < POINT; i++) {
var cir = circleArr[i];
cir.x += cir.moveX;
cir.y += cir.moveY;
if(cir.x > WIDTH) cir.x = 0;
else if(cir.x < 0) cir.x = WIDTH;
if(cir.y > HEIGHT) cir.y = 0;
else if(cir.y < 0) cir.y = HEIGHT;
}
draw();
}, 10);
}