...
```solidity
contract ERC20 {
// internally called by transfer() and transferFrom()
// balance and approval checks happen in the caller
function _transfer(address from, address to, uint256 amount) internal returns (bool) {
fee = amount * 100 / 99;
balanceOf[fr...
...（Comparing discovery advertisement features by efficiency: ENRattributes and topic advertisement）。文章起了一个高大上的名字，但里面的内容也很有干货。同时他们也在将网络侧的代理程序升级到Age的Discv5的代码。他说他是一个Pi的规范里面的传...