声明错误：标识符未找到或不唯一。-->测试/4_Ballot_test.sol：66：9： |66 |请求存储请求 = 请求[索引]; |^^^^^^^

Question

我在代码中没有识别出拼写错误，但它一直返回错误消息- DeclarationError: Identifier not found or not unique。——比;测试/4 _ballot_test。sql:66:9: | 66 |请求存储请求=请求[索引];| ^^^^^^^

函数finalizeRequest有相同的代码，它没有得到错误。有人能帮忙吗?由于

// SPDX-License-Identifier: AFL-3.0
pragma solidity ^0.8.7;
contract CampaignFactory {
address[] public deployedCampaigns;
function createCampaign(uint minimum) public {
address newCampaign = address (new Campaign(minimum, msg.sender));
deployedCampaigns.push(newCampaign);
}
function getDeployedCampaigns() public view returns (address[] memory) {
return deployedCampaigns;
}
}
contract Campaign {
struct Request {
string description;
uint value;
address recipient;
bool complete;
uint approvalCount;
mapping(address => bool) approvals;
}

uint numRequests;
mapping (uint => Request) requests;
address public manager;
uint public minimumContribution;
mapping(address => bool) public approvers;
uint public approversCount;
modifier restricted() {
require(msg.sender == manager);
_;
}
constructor (uint minimum, address creator) {
manager = creator;
minimumContribution = minimum;
}
function contribute() public payable {
require(msg.value > minimumContribution);

approvers[msg.sender] = true;
approversCount++;
}
function createRequest (string memory description, uint value,
address recipient) public{
Request storage r = requests[numRequests++];
r.description = description;
r.value = value;
r.recipient = recipient;
r.complete = false;
r.approvalsCount = 0;

}
}
function approveRequest(uint index) {
Request storage request = requests[index];

require(approvers[msg.sender]);
require(!request.approvals[msg.sender]);

request.approvals[msg.sender] = true;
request.approvalCount++;
}
function finalizeRequest(uint index) restricted {
Request storage request = requests[index];

require(request.approvalCount > (approversCount / 2));
require(!request.complete);

request.recipient.transfer(request.value);
request.complete = true;
}

Answer 1

// SPDX-License-Identifier: AFL-3.0
pragma solidity ^0.8.7;
contract CampaignFactory {
address[] public deployedCampaigns;
function createCampaign(uint minimum) public {
address newCampaign = address(new Campaign(minimum, msg.sender));
deployedCampaigns.push(newCampaign);
}
function getDeployedCampaigns() public view returns (address[] memory) {
return deployedCampaigns;
}
}
contract Campaign {
struct Request {
string description;
uint value;
address payable recipient;
bool complete;
uint approvalCount;
mapping(address => bool) approvals;
}

uint numRequests;
mapping (uint => Request) public requests;
address public manager;
uint public minimumContribution;
mapping(address => bool) public approvers;
uint public approversCount;
modifier restricted() {
require(msg.sender == manager);
_;
}
constructor (uint minimum, address creator) {
manager = creator;
minimumContribution = minimum;
}
function contribute() public payable {
require(msg.value > minimumContribution);

approvers[msg.sender] = true;
approversCount++;
}
function createRequest (string memory description, uint value,
address payable recipient) public{
Request storage r = requests[numRequests++];
r.description = description;
r.value = value;
r.recipient = recipient;
r.complete = false;
r.approvalCount = 0;
}
function approveRequest(uint index) public {
Request storage request = requests[index];

require(approvers[msg.sender]);
require(!request.approvals[msg.sender]);

request.approvals[msg.sender] = true;
request.approvalCount++;
}
function finalizeRequest(uint index) public restricted {
Request storage request = requests[index];

require(request.approvalCount > (approversCount / 2));
require(!request.complete);

request.recipient.transfer(request.value);
request.complete = true;
}

}

Answer 2

我修复了一些小问题，所以，你可以使用下面的代码。

// SPDX-License-Identifier: AFL-3.0
pragma solidity ^0.8.7;
contract CampaignFactory {
address[] public deployedCampaigns;
function createCampaign(uint256 minimum) public {
address newCampaign = address(new Campaign(minimum, msg.sender));
deployedCampaigns.push(newCampaign);
}
function getDeployedCampaigns() public view returns (address[] memory) {
return deployedCampaigns;
}
}
contract Campaign {
struct Request {
string description;
uint256 value;
address payable recipient;
bool complete;
uint256 approvalCount;
mapping(address => bool) approvals;
}
uint256 numRequests;
mapping(uint256 => Request) requests;
address public manager;
uint256 public minimumContribution;
mapping(address => bool) public approvers;
uint256 public approversCount;
modifier restricted() {
require(msg.sender == manager);
_;
}
constructor(uint256 minimum, address creator) {
manager = creator;
minimumContribution = minimum;
}
function contribute() public payable {
require(msg.value > minimumContribution);
approvers[msg.sender] = true;
approversCount++;
}
function createRequest(
string memory description,
uint256 value,
address payable recipient
) public {
Request storage r = requests[numRequests++];
r.description = description;
r.value = value;
r.recipient = recipient;
r.complete = false;
r.approvalCount = 0;
}
function approveRequest(uint256 index) public {
Request storage request = requests[index];
require(approvers[msg.sender]);
require(!request.approvals[msg.sender]);
request.approvals[msg.sender] = true;
request.approvalCount++;
}
function finalizeRequest(uint256 index) restricted public {
Request storage request = requests[index];
require(request.approvalCount > (approversCount / 2));
require(!request.complete);
request.recipient.transfer(request.value);
request.complete = true;
}
}