diff --git a/en/js/crypto-js.md b/en/js/crypto-js.md
index 9e8564f23ba49ee35ecff2fc6000523d401f096e..be52d806a43847e288b14bf01eada3132fdf95d6 100644
--- a/en/js/crypto-js.md
+++ b/en/js/crypto-js.md
@@ -70,13 +70,13 @@ function CryptoJSDemo() {
   }
 
   function testAESEncrypt() {
-    let encrypted = CryptoJS.AES.encrypt(CryptoJS.enc.Hex.parse('48656c6c6f576f726c6421'), CryptoJS.enc.Hex.parse('000102030405060708090a0b0c0d0e0f'), { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.NoPadding });
+    let encrypted = CryptoJS.AES.encrypt(CryptoJS.enc.Hex.parse('48656c6c6f576f726c6421'), CryptoJS.enc.Hex.parse('000102030405060708090a0b0c0d0e0f'), { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.PKcs7 });
     setResult('testAESEncrypt result: ' + encrypted.toString());
   }
 
   function testAESDecrypt() {
-    let encrypted = CryptoJS.AES.encrypt(CryptoJS.enc.Hex.parse('48656c6c6f576f726c6421'), CryptoJS.enc.Hex.parse('000102030405060708090a0b0c0d0e0f'), { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.NoPadding });
-    let decrypted = CryptoJS.AES.decrypt(encrypted, CryptoJS.enc.Hex.parse('000102030405060708090a0b0c0d0e0f'), { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.NoPadding });
+    let encrypted = CryptoJS.AES.encrypt(CryptoJS.enc.Hex.parse('48656c6c6f576f726c6421'), CryptoJS.enc.Hex.parse('000102030405060708090a0b0c0d0e0f'), { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.PKcs7 });
+    let decrypted = CryptoJS.AES.decrypt(encrypted, CryptoJS.enc.Hex.parse('000102030405060708090a0b0c0d0e0f'), { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.PKcs7 });
     setResult('testAESDecrypt result: ' + decrypted.toString());
   }
 
diff --git a/zh-cn/js/crypto-js.md b/zh-cn/js/crypto-js.md
index 35a190dda499cc72d37124aae7ad115f2319adc0..59783ff1e976ca9de2cfa496e9c50863074e00dd 100644
--- a/zh-cn/js/crypto-js.md
+++ b/zh-cn/js/crypto-js.md
@@ -70,13 +70,13 @@ function CryptoJSDemo() {
   }
 
   function testAESEncrypt() {
-    let encrypted = CryptoJS.AES.encrypt(CryptoJS.enc.Hex.parse('48656c6c6f576f726c6421'), CryptoJS.enc.Hex.parse('000102030405060708090a0b0c0d0e0f'), { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.NoPadding });
+    let encrypted = CryptoJS.AES.encrypt(CryptoJS.enc.Hex.parse('48656c6c6f576f726c6421'), CryptoJS.enc.Hex.parse('000102030405060708090a0b0c0d0e0f'), { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.PKcs7 });
     setResult('testAESEncrypt result: ' + encrypted.toString());
   }
 
   function testAESDecrypt() {
-    let encrypted = CryptoJS.AES.encrypt(CryptoJS.enc.Hex.parse('48656c6c6f576f726c6421'), CryptoJS.enc.Hex.parse('000102030405060708090a0b0c0d0e0f'), { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.NoPadding });
-    let decrypted = CryptoJS.AES.decrypt(encrypted, CryptoJS.enc.Hex.parse('000102030405060708090a0b0c0d0e0f'), { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.NoPadding });
+    let encrypted = CryptoJS.AES.encrypt(CryptoJS.enc.Hex.parse('48656c6c6f576f726c6421'), CryptoJS.enc.Hex.parse('000102030405060708090a0b0c0d0e0f'), { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.PKcs7 });
+    let decrypted = CryptoJS.AES.decrypt(encrypted, CryptoJS.enc.Hex.parse('000102030405060708090a0b0c0d0e0f'), { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.PKcs7 });
     setResult('testAESDecrypt result: ' + decrypted.toString());
   }