Nft没有使用metaplex和arweave元数据进行铸造。

可以通过使用其他的NFT平台进行铸造，例如Solana's SPL（Solana Programming Language）NFT方案。以下是使用SPL NFT方案进行铸造的代码示例：

use crate::{
    error::MetaplexError,
    state::{Certificate, Common, Data, DataSize, Key, Metadata},
    Result,
};
use arrayref::{array_mut_ref, array_ref, mut_array_refs};
use solana_program::{
    account_info::{next_account_info, AccountInfo},
    entrypoint::ProgramResult,
    hash::Hasher,
    msg,
    program_error::{PrintProgramError, ProgramError},
    pubkey::Pubkey,
};
use spl_token_metadata::{
    instruction::create_metadata_accounts,
    state::{Data as MetadataData, Key as MetadataKey},
};

// 此处省略其他代码...

pub fn try_create_metadata<'a>(
    data_account_info: &'a AccountInfo<'a>,
    mint_account_info: &'a AccountInfo<'a>,
    token_metadata_program_info: &'a AccountInfo<'a>,
    payer_account_info: &'a AccountInfo<'a>,
    metadata_account_info: &'a AccountInfo<'a>,
    mint_authority_account_info: &'a AccountInfo<'a>,
    update_authority_account_info: Option<&'a AccountInfo<'a>>,
    max_update_authority_depth: u8,
    name: String,
    symbol: String,
    uri: String,
    seller_fee_basis_points: u16,
    creators: Vec<(
        Pubkey, // creator's address.
        bool,   // Whether this creator should be added as a verified creator.
        u8,     // Creator's share of profits in the range 0-100.
    )>,
) -> Result<()> {
    let (metadata_key, mint_key, payer_key, update_authority_key) = {
        let (metadata_key, mint_key, payer_key, update_authority_key) =
            assert_keys_match_and_return_keys(
                metadata_account_info.key,
                mint_account_info.key,
                payer_account_info.key,
                update_authority_account_info.map(|a| a.key),
            );
        (
            MetadataKey::unpack_from_slice(&metadata_key.data.borrow())?,
            Key::unpack_from_slice(&mint_key.data.borrow())?,
            Key::unpack_from_slice(&payer_key.data.borrow())?,
            update_authority_key
                .map(|update_authority_key| Key::unpack_from_slice(&update_authority_key.data.borrow()))
                .transpose()?,
        )
    };

    create_metadata_accounts(
        token_metadata_program_info.clone(),
        metadata_account_info.clone(),
        mint_account_info.clone(),
        mint_authority_account_info.clone(),
        payer_account_info.clone(),
        update_author