如何在solidity中返回固定長度的數組

我收到以下錯誤，如何解決？

Expected type name function Array_Data () public view returns (memory uint []) {^ ---- ^.

pragma solidity >=0.5.0 <0.6.0;

contract Lock {
   uint[] public _gas_left;
   
   function closeAccount() public {
       _gas_left.push(gasleft());
   }
   
   function Array_Data() public view returns(memory uint[]) {
       uint[] memory arrayOfgas = new uint[](20);
       for (uint i = 0; i < _gas_left.length; i++)
           arrayOfgas[i] = _gas_left[i];
       return arrayOfgas;
   }
} 

如何解決？

這應該可以解決您的錯誤。

應該returns(uint[] memory)不是returns(memory unit[])

pragma solidity >=0.5.0 <0.6.0;

contract Lock {
   uint[] public _gas_left;
   
   function closeAccount() public {
       _gas_left.push((gasleft()));
   }
   
   function Array_Data() public view returns(uint[] memory){
       uint[] memory arrayOfgas = new uint[](20);
       for (uint i = 0; i < _gas_left.length; i++)
           arrayOfgas[i] = _gas_left[i];
       return arrayOfgas;
   }
} 

引用自：https://ethereum.stackexchange.com/questions/90844