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Topic: Help me create text new token ethereum ? (Read 354 times)

legendary
Activity: 4214
Merit: 1313
July 02, 2017, 10:58:20 AM
#2
You should move this from the Bitcoin Dev and Tech section to the altcoin section
 
member
Activity: 86
Merit: 10
Help me create text new token  ethereum ?
Fill the best solution, in your opinion, with the text token? Urgent discussion.



Following is a sample token contract with a fixed supply of 1000000 units that are initially assigned to the owner of the contract:

  1 pragma solidity ^0.4.8;
  2 
  3 // ----------------------------------------------------------------------------------------------
  4 // Sample fixed supply token contract
  5 // Enjoy. (c) BokkyPooBah 2017. The MIT Licence.
  6 // ----------------------------------------------------------------------------------------------
  7 
  8 // ERC Token Standard #20 Interface
  9 // https://github.com/ethereum/EIPs/issues/20
 10 contract ERC20Interface {
 11     // Get the total token supply
 12     function totalSupply() constant returns (uint256 totalSupply);
 13 
 14     // Get the account balance of another account with address _owner
 15     function balanceOf(address _owner) constant returns (uint256 balance);
 16 
 17     // Send _value amount of tokens to address _to
 18     function transfer(address _to, uint256 _value) returns (bool success);
 19 
 20     // Send _value amount of tokens from address _from to address _to
 21     function transferFrom(address _from, address _to, uint256 _value) returns (bool success);
 22 
 23     // Allow _spender to withdraw from your account, multiple times, up to the _value amount.
 24     // If this function is called again it overwrites the current allowance with _value.
 25     // this function is required for some DEX functionality
 26     function approve(address _spender, uint256 _value) returns (bool success);
 27 
 28     // Returns the amount which _spender is still allowed to withdraw from _owner
 29     function allowance(address _owner, address _spender) constant returns (uint256 remaining);
 30 
 31     // Triggered when tokens are transferred.
 32     event Transfer(address indexed _from, address indexed _to, uint256 _value);
 33 
 34     // Triggered whenever approve(address _spender, uint256 _value) is called.
 35     event Approval(address indexed _owner, address indexed _spender, uint256 _value);
 36 }
 37 
 38 contract FixedSupplyToken is ERC20Interface {
 39     string public constant symbol = "FIXED";
 40     string public constant name = "Example Fixed Supply Token";
 41     uint8 public constant decimals = 18;
 42     uint256 _totalSupply = 1000000;
 43     
 44     // Owner of this contract
 45     address public owner;
 46 
 47     // Balances for each account
 48     mapping(address => uint256) balances;
 49 
 50     // Owner of account approves the transfer of an amount to another account
 51     mapping(address => mapping (address => uint256)) allowed;
 52 
 53     // Functions with this modifier can only be executed by the owner
 54     modifier onlyOwner() {
 55         if (msg.sender != owner) {
 56             throw;
 57         }
 58         _;
 59     }
 60 
 61     // Constructor
 62     function FixedSupplyToken() {
 63         owner = msg.sender;
 64         balances[owner] = _totalSupply;
 65     }
 66 
 67     function totalSupply() constant returns (uint256 totalSupply) {
 68         totalSupply = _totalSupply;
 69     }
 70 
 71     // What is the balance of a particular account?
 72     function balanceOf(address _owner) constant returns (uint256 balance) {
 73         return balances[_owner];
 74     }
 75 
 76     // Transfer the balance from owner's account to another account
 77     function transfer(address _to, uint256 _amount) returns (bool success) {
 78         if (balances[msg.sender] >= _amount
 79             && _amount > 0
 80             && balances[_to] + _amount > balances[_to]) {
 81             balances[msg.sender] -= _amount;
 82             balances[_to] += _amount;
 83             Transfer(msg.sender, _to, _amount);
 84             return true;
 85         } else {
 86             return false;
 87         }
 88     }
 89 
 90     // Send _value amount of tokens from address _from to address _to
 91     // The transferFrom method is used for a withdraw workflow, allowing contracts to send
 92     // tokens on your behalf, for example to "deposit" to a contract address and/or to charge
 93     // fees in sub-currencies; the command should fail unless the _from account has
 94     // deliberately authorized the sender of the message via some mechanism; we propose
 95     // these standardized APIs for approval:
 96     function transferFrom(
 97         address _from,
 98         address _to,
 99         uint256 _amount
100     ) returns (bool success) {
101         if (balances[_from] >= _amount
102             && allowed[_from][msg.sender] >= _amount
103             && _amount > 0
104             && balances[_to] + _amount > balances[_to]) {
105             balances[_from] -= _amount;
106             allowed[_from][msg.sender] -= _amount;
107             balances[_to] += _amount;
108             Transfer(_from, _to, _amount);
109             return true;
110         } else {
111             return false;
112         }
113     }
114 
115     // Allow _spender to withdraw from your account, multiple times, up to the _value amount.
116     // If this function is called again it overwrites the current allowance with _value.
117     function approve(address _spender, uint256 _amount) returns (bool success) {
118         allowed[msg.sender][_spender] = _amount;
119         Approval(msg.sender, _spender, _amount);
120         return true;
121     }
122 
123     function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
124         return allowed[_owner][_spender];
125     }
126 }
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