child & old
default visibility is internal;
the more stuff u do,the more gas u cost;
web3+deploy+metamaskview on etherscanfrom add to contract creation
evm: ethereum virtual machine
done lesson two
in Solidity contracts mistakes cannot be edited or fixed; transactions cannot be reversed. Solidity follows the "Code is Law" mantra, which means any smart contract must be flawlessly coded when it comes into effect.
Lesson 1: Blockchain Basics
done by 0902
QOTO: Question Others to Teach Ourselves An inclusive, Academic Freedom, instance All cultures welcome. Hate speech and harassment strictly forbidden.