[英]Why is the balance of the ethereum account still zero after I create a token based on the private chain I built?
我使用以太坊官方網站上提供的合同代碼,[創建自己的cryto-currency] [1]在geth控制台中運行的私有鏈上創建高級令牌。 geth的版本為1.5.5,solc的版本為0.4.8。
我的步驟是:
1.初始化我的geth: geth初始化 genesis.json,然后geth --networkid 42 --nodiscover --maxpeers 0控制台
2.檢查編譯器:*** eth.getCompilers()***返回:實體
3.我使用在線編譯網站[Remix] [2]給了我相關的abi和代碼來直接部署我的合同。
我輸入:
(1) abi = [{“ constant”:false,“ inputs”:[{“ name”:“ newSellPrice”,“ type”:“ uint256”},……太長,無法復制結果;
(2)然后創建合同: multipliyContract = web3.eth.contract(abi)
(3) 乘法= multipliContract.new(10000,“ AKING”,2,“ AK”,0xf32200730fdaca83f18171015c0be2a6342d46c4,{來自:primaryAddress,數據:0x + code})
第一個參數表示初始供應,第二個參數表示令牌的名稱,第三個參數表示小數單位,第四個參數是可以初始提供令牌的地址。
4.檢查我的合同是否已經部署:
我輸入: txpool.status
然后我得到:等待:1
5.我開始開采合同:
輸入: miner.start()和miner.stop()
然后我輸入: eth.getBlock(5319)
我發現了那筆交易。
6.與我的合同互動:
輸入: MyContract = eth.contract(abi)
然后: myContract = MyContract.at(multiply.address)
整個過程進展順利,但是當我輸入
myContract.balanceOf(0xf32200730fdaca83f18171015c0be2a6342d46c4) (地址是eth.account [0],也是擁有我創建的令牌的地址。 我還嘗試了其他一些地址,它們都歸零。 我還嘗試了其他一些表達式,例如myContract.balanceOf(eth.accounts [0],{來自:eth.accounts [0]})或myContract.balanceOf.sendTransaction(eth.accounts [0],{來自:eth.accounts [0]})
如果我使用: eth.getBalance(eth.accounts [0]),它將僅返回我賬戶中的以太幣 ,這不是我想要看到的。
那么,我的過程有什么問題嗎?或者有什么重要的事情值得錯過?有什么意義?
整個代碼如下:
pragma solidity ^0.4.2;
contract owned {
address public owner;
function owned() {
owner = msg.sender;
}
modifier onlyOwner {
if (msg.sender != owner) throw;
_;
}
function transferOwnership(address newOwner) onlyOwner {
owner = newOwner;
}
}
contract tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData); }
contract token {
/* Public variables of the token */
string public standard = 'Token 0.1';
string public name;
string public symbol;
uint8 public decimals;
uint256 public totalSupply;
/* This creates an array with all balances */
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
/* This generates a public event on the blockchain that will notify clients */
event Transfer(address indexed from, address indexed to, uint256 value);
/* Initializes contract with initial supply tokens to the creator of the contract */
function token(
uint256 initialSupply,
string tokenName,
uint8 decimalUnits,
string tokenSymbol
) {
balanceOf[msg.sender] = initialSupply; // Give the creator all initial tokens
totalSupply = initialSupply; // Update total supply
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
decimals = decimalUnits; // Amount of decimals for display purposes
}
/* Send coins */
function transfer(address _to, uint256 _value) {
if (balanceOf[msg.sender] < _value) throw; // Check if the sender has enough
if (balanceOf[_to] + _value < balanceOf[_to]) throw; // Check for overflows
balanceOf[msg.sender] -= _value; // Subtract from the sender
balanceOf[_to] += _value; // Add the same to the recipient
Transfer(msg.sender, _to, _value); // Notify anyone listening that this transfer took place
}
/* Allow another contract to spend some tokens in your behalf */
function approve(address _spender, uint256 _value)
returns (bool success) {
allowance[msg.sender][_spender] = _value;
tokenRecipient spender = tokenRecipient(_spender);
return true;
}
/* Approve and then comunicate the approved contract in a single tx */
function approveAndCall(address _spender, uint256 _value, bytes _extraData)
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
}
/* A contract attempts to get the coins */
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
if (balanceOf[_from] < _value) throw; // Check if the sender has enough
if (balanceOf[_to] + _value < balanceOf[_to]) throw; // Check for overflows
if (_value > allowance[_from][msg.sender]) throw; // Check allowance
balanceOf[_from] -= _value; // Subtract from the sender
balanceOf[_to] += _value; // Add the same to the recipient
allowance[_from][msg.sender] -= _value;
Transfer(_from, _to, _value);
return true;
}
/* This unnamed function is called whenever someone tries to send ether to it */
function () {
throw; // Prevents accidental sending of ether
}
}
contract MyAdvancedToken is owned, token {
uint256 public sellPrice;
uint256 public buyPrice;
uint256 public totalSupply;
mapping (address => bool) public frozenAccount;
/* This generates a public event on the blockchain that will notify clients */
event FrozenFunds(address target, bool frozen);
/* Initializes contract with initial supply tokens to the creator of the contract */
function MyAdvancedToken(
uint256 initialSupply,
string tokenName,
uint8 decimalUnits,
string tokenSymbol,
address centralMinter
) token (initialSupply, tokenName, decimalUnits, tokenSymbol) {
if(centralMinter != 0 ) owner = centralMinter; // Sets the owner as specified (if centralMinter is not specified the owner is msg.sender)
balanceOf[owner] = initialSupply; // Give the owner all initial tokens
}
/* Send coins */
function transfer(address _to, uint256 _value) {
if (balanceOf[msg.sender] < _value) throw; // Check if the sender has enough
if (balanceOf[_to] + _value < balanceOf[_to]) throw; // Check for overflows
if (frozenAccount[msg.sender]) throw; // Check if frozen
balanceOf[msg.sender] -= _value; // Subtract from the sender
balanceOf[_to] += _value; // Add the same to the recipient
Transfer(msg.sender, _to, _value); // Notify anyone listening that this transfer took place
}
/* A contract attempts to get the coins */
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
if (frozenAccount[_from]) throw; // Check if frozen
if (balanceOf[_from] < _value) throw; // Check if the sender has enough
if (balanceOf[_to] + _value < balanceOf[_to]) throw; // Check for overflows
if (_value > allowance[_from][msg.sender]) throw; // Check allowance
balanceOf[_from] -= _value; // Subtract from the sender
balanceOf[_to] += _value; // Add the same to the recipient
allowance[_from][msg.sender] -= _value;
Transfer(_from, _to, _value);
return true;
}
function mintToken(address target, uint256 mintedAmount) onlyOwner {
balanceOf[target] += mintedAmount;
totalSupply += mintedAmount;
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}
function freezeAccount(address target, bool freeze) onlyOwner {
frozenAccount[target] = freeze;
FrozenFunds(target, freeze);
}
function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner {
sellPrice = newSellPrice;
buyPrice = newBuyPrice;
}
function buy() payable {
uint amount = msg.value / buyPrice; // calculates the amount
if (balanceOf[this] < amount) throw; // checks if it has enough to sell
balanceOf[msg.sender] += amount; // adds the amount to buyer's balance
balanceOf[this] -= amount; // subtracts amount from seller's balance
Transfer(this, msg.sender, amount); // execute an event reflecting the change
}
function sell(uint256 amount) {
if (balanceOf[msg.sender] < amount ) throw; // checks if the sender has enough to sell
balanceOf[this] += amount; // adds the amount to owner's balance
balanceOf[msg.sender] -= amount; // subtracts the amount from seller's balance
if (!msg.sender.send(amount * sellPrice)) { // sends ether to the seller. It's important
throw; // to do this last to avoid recursion attacks
} else {
Transfer(msg.sender, this, amount); // executes an event reflecting on the change
}
}
}
地址用引號引起來。
將此myContract.balanceOf(0xf32200730fdaca83f18171015c0be2a6342d46c4)
更改為此myContract.balanceOf("0xf32200730fdaca83f18171015c0be2a6342d46c4")
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