修改

Scripts/thwj/thwjHelper.js

@@ -210,12 +210,11 @@ function loadIndex() {
     });
 }
 
-function base64encode(data) {
-    // let CryptoJS = createCryptoJS();
-    // let pstr = CryptoJS.enc.Utf8.parse(data);
-    // let base64Data = CryptoJS.enc.Base64.stringify(data);
-    // return 'data:image/png;base64,' + base64Data;
-    return 'data:image/png;base64,' + Buffer.from(data).toString('base64');
+function base64encode(str) {
+    let CryptoJS = createCryptoJS();
+    let data = CryptoJS.enc.Latin1.parse(str);
+    let base64Data = CryptoJS.enc.Base64.stringify(data);
+    return 'data:image/png;base64,' + base64Data;
 }
 
 async function getVerifyCodeImg() {