diff --git a/examples/test.rs b/examples/test.rs
index cafaeb6..fba0415 100644
--- a/examples/test.rs
+++ b/examples/test.rs
@@ -4,120 +4,48 @@
 // 测试钱包在C侧调用接口存储和重新读出钱包密钥
 //
 
-use rustwallet::{
-    generate_sec_key, new_wallet, sign, sign_for_tran, wdecrypt, wencrypt, wget_address,
-};
-use std::ffi::{CStr, CString};
-use std::os::raw::c_char;
-
-macro_rules! print_cchar {
-    ($p1:expr) => {
-        let s = CStr::from_ptr($p1);
-        let ps = s.to_str().unwrap();
-        println!("{}=> {}", stringify!($p1), ps)
-    };
-    ($p1:expr, $p2:expr) => {
-        let s = CStr::from_ptr($p2);
-        let ps = s.to_str().unwrap();
-        println!("{}{}", $p1, ps)
-    };
-}
-
-macro_rules! cchar_to_str {
-    ($p1:expr) => {{
-        let s = CStr::from_ptr($p1);
-        let ps = s.to_str().unwrap();
-        ps
-    }};
-}
-
-macro_rules! str_to_cchar {
-    ($p1:expr) => {{
-        let c_msgkey = $p1.to_string();
-        c_msgkey
-    }};
-}
+use rustwallet::{generate_sec_key, sign, sign_for_tran, wdecrypt, wencrypt, wget_address};
 
 fn main() {
-    unsafe {
-        let msg = "a0f2022d15fd8072f12c76cc1596c4f1";
-        // let wallet: CWallet = new_wallet(str_to_cchar!(msg));
-        // println!("---- generated a wallet to be used on C-side ----");
-        // print_wallet(&wallet);
-        // let address = get_address(&wallet);
-        // print_cchar!(address);
-        // let address_str = cchar_to_str!(address);
-        // println!("address: {}", address_str);
-        // let sign_str = sign_for_tran(&wallet,str_to_cchar!("cc0dac9a2bd7125bbe9130b83053494860f7a444868a45a9c00a865631ba8894"));
-        // print_cchar!(sign_str);
-        // let s_key = generate_sec_key(&wallet);
-        // print_cchar!(s_key);
+    let msg = "a0f2022d15fd8072f12c76cc1596c4f1";
 
-        let key0 = "3f26e586111b5c4cab6a5dd5e0d13c3b13184ba74410ba064a3b485be4f9a2cd";
-        let key1 = "";
-        let key2 = "cd00eb0126aeed39762579ce94c90a04695ad17fbd5e79aa4e9fc4a34ba32a5";
-        let private_key = generate_sec_key(
-            msg.to_string(),
-            key0.to_string(),
-            str_to_cchar!(key1),
-            str_to_cchar!(key2),
-        );
-        println!("private_key=> {}", private_key);
+    let key0 = "3f26e586111b5c4cab6a5dd5e0d13c3b13184ba74410ba064a3b485be4f9a2cd";
+    let key1 = "";
+    let key2 = "cd00eb0126aeed39762579ce94c90a04695ad17fbd5e79aa4e9fc4a34ba32a5";
+    let private_key = generate_sec_key(
+        msg.to_string(),
+        key0.to_string(),
+        None,
+        Some(key2.to_string()),
+    );
+    println!("private_key=> {}", private_key);
 
-        let address2 = wget_address(
-            str_to_cchar!(msg),
-            str_to_cchar!(key0),
-            Option(key1),
-            str_to_cchar!(key2),
-        );
+    let address2 = wget_address(
+        msg.to_string(),
+        key0.to_string(),
+        None,
+        Some(key2.to_string()),
+    );
 
-        println!("address=> {}", address2);
-        let message = "helloword";
-        let msg_encrypt = wencrypt(
-            str_to_cchar!(msg),
-            str_to_cchar!(key0),
-            str_to_cchar!(key1),
-            str_to_cchar!(key2),
-            str_to_cchar!(message),
-        );
+    println!("address=> {}", address2);
+    let message = "helloword";
+    let msg_encrypt = wencrypt(
+        msg.to_string(),
+        key0.to_string(),
+        None,
+        Some(key2.to_string()),
+        message.to_string(),
+    );
 
-        println!("msg_encrypt=> {}", msg_encrypt);
+    println!("msg_encrypt=> {}", msg_encrypt);
 
-        let msg_decrypt = wdecrypt(
-            str_to_cchar!(msg),
-            str_to_cchar!(key0),
-            str_to_cchar!(key1),
-            str_to_cchar!(key2),
-            msg_encrypt,
-        );
+    let msg_decrypt = wdecrypt(
+        msg.to_string(),
+        key0.to_string(),
+        None,
+        Some(key2.to_string()),
+        msg_encrypt,
+    );
 
-        println!("msg_decrypt=> {}", msg_decrypt);
-
-        // let tmp_cwallet2 = restore_wallet(&tmp_cwallet);
-        // let address3 = get_address(&tmp_cwallet2);
-        // print_cchar!(address3);
-
-        // let sign_str = sign(&tmp_cwallet2,str_to_cchar!("111"));
-        // print_cchar!(sign_str);
-
-        // let cwallet3 = reset_wallet(&tmp_cwallet2);
-        // print_wallet(&cwallet3);
-        // let sign_str2 = sign(&cwallet3, str_to_cchar!("111"));
-        // print_cchar!(sign_str2);
-        // print_wallet(&tmp_cwallet2);
-        // println!("---- saving the wallet to wallet.json ----");
-        // save_wallet(&wallet);
-        // println!("---- saved! ----");
-
-        // println!("---- fetching the saved wallet to be exposed to C-side ----");
-        // let fetched = fetch_cwallet();
-        // print_wallet(&fetched);
-        // sign();
-        // let sign_str = "111";
-        // let cstr = std::ffi::CString::new(sign_str).unwrap();
-        // sss_sign(cstr.into_raw());
-
-        // // free_cwallet(wallet); // 对应 generate_cwallet()
-        // free_cwallet(fetched); // 对应 fetch_wallet()
-    }
+    println!("msg_decrypt=> {}", msg_decrypt);
 }
diff --git a/src/lib.rs b/src/lib.rs
index d4415b3..b5a6607 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -6,6 +6,7 @@
 //
 
 use qr::qr_code::QR;
+
 use utils::str_utils::{base64_to_hex, hex_to_base64};
 use wasm_bindgen::prelude::*;
 
@@ -41,12 +42,6 @@ macro_rules! console_log {
     ($($t:tt)*) => (log(&format_args!($($t)*).to_string()))
 }
 
-#[wasm_bindgen]
-pub fn new_wallet(msg_key: String) -> String {
-    let rust_wallet = wallet_impl::Wallet::new(&msg_key);
-    rust_wallet.get_public_key().to_string()
-}
-
 #[wasm_bindgen]
 pub fn get_public_key(
     msg_key: String,
diff --git a/src/wallet/wallet_impl.rs b/src/wallet/wallet_impl.rs
index 802f960..b09f993 100644
--- a/src/wallet/wallet_impl.rs
+++ b/src/wallet/wallet_impl.rs
@@ -178,7 +178,7 @@ impl Wallet {
     {
         let secp = Secp256k1::new();
         let secret_key = self.get_secret_key();
-        let hex_str = match hex::decode(msg){
+        let hex_str = match hex::decode(msg) {
             Ok(v) => v,
             Err(e) => panic!("error decode hex str: {}", e),
         };
@@ -211,7 +211,7 @@ impl Wallet {
         let mut msg: String = msg1.clone().to_string();
         if msg.len() % 2 == 1 {
             msg = "0".to_owned() + &msg;
-        } 
+        }
         println!("msg to decrypt: {:?}", &msg);
         let msg = match hex::decode(&msg) {
             Ok(v) => v,