下载图片

function initJquery() {
    var scriptele = document.createElement("script");
    scriptele.src = "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js";
    scriptele.onload = function() {
        debugger ;
    }
    document.body.appendChild(scriptele);
}

function initLodash() {
    var scriptele = document.createElement("script");
    scriptele.src = "https://cdn.jsdelivr.net/npm/lodash@4.17.20/lodash.min.js";
    scriptele.onload = function() {
        debugger ;
    }
    document.body.appendChild(scriptele);
}

// initJquery();
// initLodash();


_.forEach($("canvas"),(canvas,index)=>{
    var dataURL = canvas.toDataURL();
    var a = document.createElement("a")
    a.href = dataURL;
    a.name = index;
    a.download = `${index}.png`;
    debugger;
    $(a).text(a.download).appendTo($("body")).click();


})