题目预览7.Delegation分析攻击8.Force分析攻击9.Vault分析攻击10.King分析攻击11.Re-entrancy分析攻击12.Elevator分析攻击7.Delegation分析源码://SPDX-License-Identifier:MITpragmasolidity^0.6.0;contractDelegate{addresspublicowner;constructor(address_owner)public{owner=_owner;}functionpwn()public{owner=msg.sender;}}contractDelegation{addres