dos

Public/static/js/common.js

@@ -51,12 +51,11 @@ $('input[name=name]').attr('placeholder', '姓名');
 $('input[name=business]').attr('placeholder', '业务号');
 $('.page1 .num').html('已有 <span class="numbig">' + window.num + '</span> 人发起承诺');
 //上传canvas定义
-let canvasinfo = initCanvas('.black', 'uploadCanvas', 257, 257),
-    uploadCanvas = canvasinfo[0],
-    uploadCtx = canvasinfo[1];
+
 
 let imgInfo = {};
 let blackUrl, black;
+let uploadCanvas, uploadCtx;
 
 
 
@@ -64,6 +63,9 @@ preloadimages(preloadImageList, function () {}, function (progress) {});
 
 $(document).ready(function () {
     blackUrl = $('.black').css('background-image').replace(/^url\((['"]?)(.*)\1\)$/, '$2');
+    let canvasinfo = initCanvas('.black', 'uploadCanvas', 257, 257);
+    uploadCanvas = canvasinfo[0];
+    uploadCtx = canvasinfo[1];
     $('.logo').css('top', getTranslateDistance(20));
     $('.music').click(function () {
         if ($('#music')[0].paused) {