Update readme.md

change "internal" to "public" to make the function could call by user
AmazingAng · Oct 23, 2023 · 6b3c3d0 · 6b3c3d0
1 parent 90895ca
commit 6b3c3d0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/37_Signature/readme.md b/37_Signature/readme.md
@@ -76,7 +76,7 @@ tags:
      * 以及`EIP191`:https://eips.ethereum.org/EIPS/eip-191`
      * 添加"\x19Ethereum Signed Message:\n32"字段，防止签名的是可执行交易。
      */
-    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
+    function toEthSignedMessageHash(bytes32 hash) public pure returns (bytes32) {
         // 哈希的长度为32
         return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
     }