唐润平：上线版,功能为待完善

src/components/content/tunnelScene/utils/toImg.js

@@ -0,0 +1,15 @@
+/**
+ * @param {String} text 把输入的文字转化为base64的img图片
+ */
+export default function (text, width = 100, height = 50) {
+  const canvas = document.createElement("canvas");
+  canvas.width = width;
+  canvas.height = height;
+  const ctx = canvas.getContext("2d");
+  ctx.fillStyle = "white";
+  ctx.fillRect(0, 0, width, height);
+  ctx.fillStyle = "black";
+  ctx.font = "30px serif";
+  ctx.fillText(text, 0, 30);
+  return canvas.toDataURL();
+}