使用worker进行加解密，防止主线程卡死

src/func/SM4.js

@@ -0,0 +1,19 @@
+import sm4_worker from '@/worker/sm4?worker'
+
+export default async (key, data) => {
+    // console.log(key)
+    // key = aesjs.utils.utf8.toBytes(key)
+    const encryptedBytes = await new Promise((resolve) => {
+        const aesWorker = new sm4_worker()
+        aesWorker.onmessage = (event) => {
+            resolve(event.data)
+        }
+        aesWorker.postMessage({ data, key })
+    })
+    // var encryptedBytes = sm4.encrypt(data, key, {
+    //     padding: 'pkcs#7',
+    //     output: 'array'
+    // })
+    // console.log(encryptedBytes, sm4.decrypt(encryptedBytes, key,{output:'array'}))
+    return new Uint8Array(encryptedBytes)
+}