使用控制台

Sometimes it’s nice to work with your contracts interactively for testing and debugging purposes, or for executing transactions by hand. Truffle provides you two easy ways to do this via an interactive console, with your contracts available and ready to use.

  • Truffle console: A basic interactive console connecting to any Ethereum client
  • Truffle Develop: An interactive console that also spawns a development blockchain

为什么有两个控制台?

Having two different consoles allows you to choose the best tool for your needs.

Reasons to use Truffle console:

  • You have a client you’re already using, such as Ganache or geth
  • You want to migrate to a testnet (or the main Ethereum network)
  • You want to use a specific mnemonic or account list

Reasons to use Truffle Develop:

  • You are testing your project with no intention of immediately deploying
  • You don’t need to work with specific accounts (and you’re fine with using default development accounts)
  • You don’t want to install and manage a separate blockchain client

命令

All commands require that you be in your project folder. You do not need to be at the root.

登录控制台

To launch the console:

  1. truffle console

This will look for a network definition called development in the configuration, and connect to it, if available. You can override this using the --network <name> option or customize the development network settings. See more details in the Networks section as well as the command reference.

When you load the console, you’ll immediately see the following prompt:

  1. truffle(development)>

This tells you you’re running within a Truffle console using the development network.

登录Develop控制台

To launch Truffle Develop:

  1. truffle develop

This will spawn a development blockchain locally on port 9545 by default. If you already have a truffle develop session running, it will instead connect to that development blockchain.

When you load Truffle Develop, you will see the following:

  1. Truffle Develop started at http://localhost:9545/
  3. Accounts:
  4. (0) 0x627306090abab3a6e1400e9345bc60c78a8bef57
  5. (1) 0xf17f52151ebef6c7334fad080c5704d77216b732
  6. (2) 0xc5fdf4076b8f3a5357c5e395ab970b5b54098fef
  7. (3) 0x821aea9a577a9b44299b9c15c88cf3087f3b5544
  8. (4) 0x0d1d4e623d10f9fba5db95830f7d3839406c6af2
  9. (5) 0x2932b7a2355d6fecc4b5c0b6bd44cc31df247a2e
  10. (6) 0x2191ef87e392377ec08e7c08eb105ef5448eced5
  11. (7) 0x0f4f2ac550a1b4e2280d04c21cea7ebd822934b5
  12. (8) 0x6330a553fc93768f612722bb8c2ec78ac90b3bbc
  13. (9) 0x5aeda56215b167893e80b4fe645ba6d5bab767de
  15. Private Keys:
  16. (0) c87509a1c067bbde78beb793e6fa76530b6382a4c0241e5e4a9ec0a0f44dc0d3
  17. (1) ae6ae8e5ccbfb04590405997ee2d52d2b330726137b875053c36d94e974d162f
  18. (2) 0dbbe8e4ae425a6d2687f1a7e3ba17bc98c673636790f1b8ad91193c05875ef1
  19. (3) c88b703fb08cbea894b6aeff5a544fb92e78a18e19814cd85da83b71f772aa6c
  20. (4) 388c684f0ba1ef5017716adb5d21a053ea8e90277d0868337519f97bede61418
  21. (5) 659cbb0e2411a44db63778987b1e22153c086a95eb6b18bdf89de078917abc63
  22. (6) 82d052c865f5763aad42add438569276c00d3d88a2d062d36b2bae914d58b8c8
  23. (7) aa3680d5d48a8283413f7a108367c7299ca73f553735860a87b08f39395618b7
  24. (8) 0f62d96d6675f32685bbdb8ac13cda7c23436f63efbb9d07700d8669ff12b7c4
  25. (9) 8d5366123cb560bb606379f90a0bfd4769eecc0557f1b362dcae9012b548b1e5
  27. Mnemonic: candy maple cake sugar pudding cream honey rich smooth crumble sweet treat

This shows you the addresses, private keys, and mnemonic for this particular blockchain.

Note: When you run truffle develop for the first time, Truffle will generate a random mnemonic that will persist for you and you alone. If you want to use a different mnemonic or set of addresses, we recommend using Ganache.

Warning: Remember to never use any of these addresses or the mnemonic on the mainnet. This is for development only.

配置 Truffle Develop

You can configure truffle develop to use any of the available ganache-core options and configurable network settings.

For example:

  1. module.exports = {
  2.   /* ... rest of config */
  4.   networks: {
  5.     /* ... other networks */
  7.     develop: {
  8.       port: 8545,
  9.       network_id: 20,
  10.       accounts: 5,
  11.       defaultEtherBalance: 500,
  12.       blockTime: 3
  13.     }
  14.   }
  15. };

功能

Both Truffle Develop and the console provide most of the features available in the Truffle command line tool. For instance, you can type migrate --reset within the console, and it will be interpreted the same as if you ran truffle migrate --reset on the command line.

Additionally, both Truffle Develop and the console have the following features:

  • All of your compiled contracts are available and ready for use.
  • After each command (such as migrate --reset) your contracts are reprovisioned so you can start using the newly assigned addresses and binaries immediately.
  • The web3 library is made available and is set to connect to your Ethereum client.

可用命令

  • build
  • compile
  • create
  • debug
  • deploy
  • exec
  • help
  • install
  • migrate
  • networks
  • opcode
  • publish
  • run
  • test
  • version

If a Truffle command is not available, it is because it is not relevant for an existing project (for example, init) or wouldn’t make sense (for example, develop or console).

See full command reference for more information.