Dapp是区块链应用，区块链的共识机制、智能合约以及跨链融合等特征，使得DApp在金√融方面具备天然的优势。但只要是在区块链上开发的APP都是Dapp吗？当然不是，一个Dapp必须开源、利用代√币以及具备不变的算法支持系统开发180.3831.97z4。
Dapp，即去中心化应用，以去中心化的方式，免去了中心化管理的风险，其去中心化的信任机制也提高了合作效率。目前以太坊被认为是Dapp中最稳定的区块链，一部分原因在于以太坊架构是真正去中心化，这对于构建和使用Dapp的工程师来说非常重要。
**
* Networks define how you connect to your ethereum client and let you set the
* defaults web3 uses to send transactions. If you don't specify one truffle
* will spin up a development blockchain for you on port 9545 when you
* run develop or test. You can ask a truffle command to use a specific
* network from the command line, e.g
*
* $ truffle test --network
*/
networks: {
// Useful for testing. The development name is special - truffle uses it by default
// if it's defined here and no other network is specified at the command line.
// You should run a client (like ganache-cli, geth or parity) in a separate terminal
// tab if you use this network and you must also set the host, port and network_id
// options below to some value.
