目录结构：
读取文本数据
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script>
window.onload = function() {
let obtn = document.getElementById('btn1')
obtn.onclick = async function() {
// 1.请求
let res = await fetch('data/1.txt')
// 2.解析文本数据
let data = await res.text()
console.log(data)
}
}
</script>
</head>
<body>
<input type="button" value="读取" id="btn1">
</body>
</html>
读取json数据
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script>
window.onload = function() {
let obtn = document.getElementById('btn1')
obtn.onclick = async function() {
// 1.请求
let res = await fetch('data/1.json')
// 2.解析json数据
let data = await res.json()
console.log(data)
}
}
</script>
</head>
<body>
<input type="button" value="读取" id="btn1">
</body>
</html>
读取二进制数据
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script>
window.onload = function() {
let obtn = document.getElementById('btn1')
let oImg = document.getElementById('img1')
obtn.onclick = async function() {
// 1.请求
let res = await fetch('data/123.jpg')
// 2.解析 图片 数据
let data = await res.blob();
let url = URL.createObjectURL(data);
console.log(url) // blob:http://localhost/af62b20b-7964-47ab-8fd3-a40f4de2d5f8
oImg.src = url;
}
}
</script>
</head>
<body>
<input type="button" value="读取" id="btn1">
<img id="img1" />
</body>
</html>