dos

Public/static/js/common.js

@@ -340,6 +340,7 @@ function createPoster(callback) {
             $('.tip1,.tip6').css('top', '51.75rem');
             break;
     }
+    $('.poster-canvas-block').append($('<img class="posterImg" src="" />'));
     $('.posterImg').attr('src', 'http://maf.dev.izhida.cn/Public/static/image2/poster' + resultType + '.png');
     if (!browser.versions.weixin) {
         callback();
@@ -350,7 +351,7 @@ function createPoster(callback) {
     let canvasinfo = initCanvas('.poster-canvas-block', 'posterCanvas', designPxToRealPx(canvasArr[resultType - 1][2]), designPxToRealPx(canvasArr[resultType - 1][3]));
     posterCanvas = canvasinfo[0];
     posterCtx = canvasinfo[1];
-    $('.poster-canvas-block').append($('<img class="posterImg" src="" />'));
+
 
     $('#posterCanvas').css({
         'width': pxToRem(canvasArr[resultType - 1][2]) / 2 + 'rem',