获取存储

获取合约存储槽的原始值

$ cast storage --help

用法：cast storage [OPTIONS] <ADDRESS> [SLOT]

参数：
  <ADDRESS>
          The contract address

  [SLOT]
          The storage slot number

选项：
  -b, --block <BLOCK>
          The block height to query at.
          
          Can also be the tags earliest, finalized, safe, latest, or pending.

  -r, --rpc-url <URL>
          The RPC endpoint
          
          [env: ETH_RPC_URL=]

      --flashbots
          Use the Flashbots RPC URL with fast mode
          (<https://rpc.flashbots.net/fast>).
          
          This shares the transaction privately with all registered builders.
          
          See:
          <https://docs.flashbots.net/flashbots-protect/quick-start#faster-transactions>

      --jwt-secret <JWT_SECRET>
          JWT Secret for the RPC endpoint.
          
          The JWT secret will be used to create a JWT for a RPC. For example,
          the following can be used to simulate a CL `engine_forkchoiceUpdated`
          call:
          
          cast rpc --jwt-secret <JWT_SECRET> engine_forkchoiceUpdatedV2
          '["0x6bb38c26db65749ab6e472080a3d20a2f35776494e72016d1e339593f21c59bc",
          "0x6bb38c26db65749ab6e472080a3d20a2f35776494e72016d1e339593f21c59bc",
          "0x6bb38c26db65749ab6e472080a3d20a2f35776494e72016d1e339593f21c59bc"]'
          
          [env: ETH_RPC_JWT_SECRET=]

  -e, --etherscan-api-key <KEY>
          The Etherscan (or equivalent) API key
          
          [env: ETHERSCAN_API_KEY=]

  -c, --chain <CHAIN>
          The chain name or EIP-155 chain ID
          
          [env: CHAIN=]

  -h, --help
          Print help (see a summary with '-h')

Cache options:
      --force
          Clear the cache and artifacts folder and recompile

Build options:
      --no-cache
          Disable the cache

      --eof
          Use EOF-enabled solc binary. Enables via-ir and sets EVM version to
          Prague. Requires Docker to be installed.
          
          Note that this is a temporary solution until the EOF support is merged
          into the main solc release.

      --skip <SKIP>...
          Skip building files whose names contain the given filter.
          
          `test` and `script` are aliases for `.t.sol` and `.s.sol`.

Linker options:
      --libraries <LIBRARIES>
          Set pre-linked libraries
          
          [env: DAPP_LIBRARIES=]

Compiler options:
      --ignored-error-codes <ERROR_CODES>
          Ignore solc warnings by error code

      --deny-warnings
          Warnings will trigger a compiler error

      --no-auto-detect
          Do not auto-detect the `solc` version

      --use <SOLC_VERSION>
          Specify the solc version, or a path to a local solc, to build with.
          
          Valid values are in the format `x.y.z`, `solc:x.y.z` or
          `path/to/solc`.

      --offline
          Do not access the network.
          
          Missing solc versions will not be installed.

      --via-ir
          Use the Yul intermediate representation compilation pipeline

      --no-metadata
          Do not append any metadata to the bytecode.
          
          This is equivalent to setting `bytecode_hash` to `none` and
          `cbor_metadata` to `false`.

      --silent
          Don't print anything on startup

      --ast
          Includes the AST as JSON in the compiler output

      --evm-version <VERSION>
          The target EVM version

      --optimize [<OPTIMIZE>]
          Activate the Solidity optimizer
          
          [possible values: true, false]

      --optimizer-runs <RUNS>
          The number of runs specifies roughly how often each opcode of the
          deployed code will be executed across the life-time of the contract.
          This means it is a trade-off parameter between code size (deploy cost)
          and code execution cost (cost after deployment). An `optimizer_runs`
          parameter of `1` will produce short but expensive code. In contrast, a
          larger `optimizer_runs` parameter will produce longer but more gas
          efficient code

      --extra-output <SELECTOR>...
          Extra output to include in the contract's artifact.
          
          Example keys: evm.assembly, ewasm, ir, irOptimized, metadata
          
          For a full description, see
          <https://docs.soliditylang.org/en/v0.8.13/using-the-compiler.html#input-description>

      --extra-output-files <SELECTOR>...
          Extra output to write to separate files.
          
          Valid values: metadata, ir, irOptimized, ewasm, evm.assembly

Project options:
  -o, --out <PATH>
          The path to the contract artifacts folder

      --revert-strings <REVERT>
          Revert string configuration.
          
          Possible values are "default", "strip" (remove), "debug"
          (Solidity-generated revert strings) and "verboseDebug"

      --build-info
          Generate build info files

      --build-info-path <PATH>
          Output path to directory that build info files will be written to

      --root <PATH>
          The project's root path.
          
          By default root of the Git repository, if in one, or the current
          working directory.

  -C, --contracts <PATH>
          The contracts source directory

  -R, --remappings <REMAPPINGS>
          The project's remappings

      --remappings-env <ENV>
          The project's remappings from the environment

      --cache-path <PATH>
          The path to the compiler cache

      --lib-paths <PATH>
          The path to the library folder

      --hardhat
          Use the Hardhat-style project layout.
          
          This is the same as using: `--contracts contracts --lib-paths
          node_modules`.
          
          [aliases: hh]

      --config-path <FILE>
          Path to the config file