Question

js 怎么实现image的二进制流

Answer 1

HTML代码：

<div id="forAppend" class="demo"></div>

JS代码：
var eleAppend = document.getElementById("forAppend");
window.URL = window.URL || window.webkitURL;
if (typeof history.pushState == "function") {
var xhr = new XMLHttpRequest();
xhr.open("get", "/image/study/s/s256/mm1.jpg", true);
xhr.responseType = "blob";
xhr.onload = function() {
if (this.status == 200) {
var blob = this.response;
var img = document.createElement("img");
img.onload = function(e) {
window.URL.revokeObjectURL(img.src); // 清除释放
};
img.src = window.URL.createObjectURL(blob);
eleAppend.appendChild(img);
}
}
xhr.send();
} else {
eleAppend.innerHTML = '<p style="color:#cd0000;">浏览器不给力，还是早点回去用乃乐冲奶机给孩子冲奶吧~</p>';