Solidity 中 bytes类型如何转换为整型 uint

bytes类型如何转换为整型 uint

    function bytesToUint(bytes memory b) public view returns (uint256){

        uint256 number;
        for(uint i= 0; i<b.length; i++){
            number = number + uint8(b[i])*(2**(8*(b.length-(i+1))));
        }
        return  number;
    }