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HTML

              
                <div>
	<div class="content"></div>
	<div class="pager"></div>
</div>

<!-- 分頁上限 10  -->


              
            
!

CSS

              
                .content {
	display: flex;
	flex-wrap: wrap;
	> div {
		width: 33.33%;
		padding: 20px;
		box-sizing: border-box;
		height: 200px;
		position: relative;
		background: #000;
		overflow: hidden;
	}

	.item {
		background-position:center;
		background-size:cover;
		&:before {
			content: attr(data-title);
			position: absolute;
			right: 10px;
			bottom: 10px;
			z-index: 2;
			color: #fff;
			text-shadow: 1px 1px 1px #000;
		}
	}
}

img {
	max-width: 100%;
	height: auto;
	position: absolute;
	left: 0;
	top: 0;
	right: 0;
	bottom: 0;
	margin: auto;
}
.pager {
	margin: 50px;
	ul {
		display: flex;
		justify-content: center;
	}
	a {
		display: inline-block;
		padding: 5px 8px;
		text-decoration: none;
		color: #f00;
		&.active {
			background: red;
			color: #fff;
		}
	}
}

              
            
!

JS

              
                let pager = document.querySelector('.pager');
let content = document.querySelector('.content');
let pageBtn = document.querySelector('.pager');

function topFunction() {
  document.body.scrollTop = 0; 
  document.documentElement.scrollTop = 0; 
}

let foodList = {
					data : ''
}

let xhr = new XMLHttpRequest();
xhr.open(
	"GET",
"https://raw.githubusercontent.com/hexschool/KCGTravel/master/datastore_search.json",
	true
);
xhr.send(null);

xhr.onload = function() {
	let array = JSON.parse(xhr.responseText);
	foodList.data = array.result.records;
	viewItems();
 viewPages();
}

//目前頁數
let currentPage = 1;
//總頁數
let totalPages = 0;
//一頁有幾項
let itemOfPage = 15;
//總個數
let totalItems = 0;
//最多顯示頁數
let maxLastPages = 10;

//顯示項目
function viewItems(){
			totalItems = foodList.data.length;
			totalPages = Math.ceil(totalItems / itemOfPage);

			var items = "";
			if(currentPage >= totalPages){
						currentPage = totalPages;
			}else if(currentPage <= 1){
						currentPage = 1;
			}
	
			var maxData = (currentPage * itemOfPage) > totalItems ? totalItems : currentPage * itemOfPage;

			for (let i = (currentPage - 1) * itemOfPage ; i < maxData ; i++){
					items += `<div class='item' style="background-image:url('${foodList.data[i].Picture1}')" data-title='${foodList.data[i].Name}'></div>`;
			}
	
			content.innerHTML = items;
}

function viewPages(){
			let prevBtn = "<li><a href='javascript:;' class='prevBtn'>上一頁</a></li>";
			let nextBtn = "<li><a href='javascript:;' class='nextBtn'>下一頁</a></li>";
			let liPager = "";
			if(totalPages > 1){
				
						if(currentPage + 5 > 10 && currentPage + 5 < totalPages){
										maxLastPages = currentPage + 5;
						}else{
									if(totalPages >= 10 && currentPage < 6){
												maxLastPages = 10;
									}else{
												maxLastPages = totalPages;
									}
						}
					 let start = ((maxLastPages - 10 + 1 ) > 1) ? (maxLastPages - 10 + 1) : 1;
				
						for	(let p = start; p <= maxLastPages; p++){
									
									liPager += `<li>
													<a href='javascript:;' class='pageBtn ${(p === currentPage ? "active" : "")}'>${p}</a>
													</li>`;
						}
						pager.innerHTML = `<ul>${prevBtn} ${liPager} ${nextBtn}</ul>`;
			}
			else{
						pager.innerHTML = "<div class='active'>1</div>";
			}		
}

pageBtn.addEventListener('click', function(e){
			e.preventDefault();
	topFunction();
				// 切換頁碼
				if (e.target.textContent == "下一頁") {
						currentPage = currentPage == totalPages ? totalPages : currentPage+=1;
				} else if (e.target.textContent == "上一頁") {
					currentPage = currentPage == 1 ? 1 : currentPage-=1;
				} else {
					currentPage = parseInt(e.target.textContent);
				}
			viewItems();
			viewPages();
}, false);
              
            
!
999px

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