Solidity From 0 to 1

This repo are learning notes of an online course of Learning Solidity from 0 to 1 (Chinese) on Hahow.

Lecturer: XiXi Huang

1. Introduction

This course includes the introduction to blockchain, Bitcoin, Ethereum. Each student can learn the fundamental skills of Solidity and practical tips of saving Gas fees and security methods.

2. Courses and Assignments

Classes	Description	Material Links
Class 1 - 5	Introduction to Blockchain
Class 6	Cyber security and key pairs
Class 7	Crypto ecosystems, crypto exchanges, crypto wallets
Class 8 - 13	Introduction to Ethereum, EVM, Ether, EIP, ERC
Class 14 - 19	Introduction to Smart Contract	14.sol / 17.sol / 18.js
Class 20	Basic Solidity: Data type (Integer, Float, boolean, Address, Bytes, String	20.sol
Class 21	Basic Solidity: Storage (mapping, array, struct)	21.sol
Class 22	Basic Solidity: Functions	22.sol
Class 23	Basic Solidity: Events	23.sol / 23_erc.sol
Class 24	Basic Solidity: Transaction and blockchain info (sender, ETH, time, difficulty, block height	24.sol
Class 25	Basic Solidity: Callback, Payble, Fallback	25.sol
Class 26	Basic Solidity: ERC20 tokens	26_erc20.sol
Assignment 1	Create your own ERC20 tokens	RLC tokens
Class 27	Intermediate Solidity: Exception (Revert, Assert, Require)	27.sol
Class 28	Intermediate Solidity: Modifier	28.sol
Class 29	Intermediate Solidity: Unit conversion (Ether & Time)	29.sol
Class 30	Intermediate Solidity: Structures of contracts & Hash	30.sol
Class 31	Intermediate Solidity: Libraries (Import & using)	31.sol
Class 32	Intermediate Solidity: address() & Self Destruct	32.sol
Class 33	Intermediate Solidity: Reference Types (Memory & Storage)	33.sol
Class 34	Intermediate Solidity: Encapsulation and Constants	34.sol
Class 35	Intermediate Solidity: Abstract contracts, Inherited contract, Polymorphism	35_erc20.sol
Class 36	Intermediate Solidity: Function Types (Public, External, Internal, Private)	36.sol
Class 37	Advanced Solidity: Interface	37.sol
Class 38	Advanced Solidity: ERC721	38_erc721.sol
Assignment 2	Create Animal Capsule Toys	Animal Capsule Toys
Class 39	Advanced Solidity: Call API (Oraclize)	39.sol
Class 40	Advanced Solidity: ECRecover and Signature Verification	40.sol
Class 41	Advanced Solidity: Interaction between contracts	41.sol
Class 42	Advanced Solidity: EVM Opcodes	42.sol
Class 43	Advanced Solidity: Overflow	43-1.sol / 43-2.sol
Class 44	Advanced Solidity: getting random numbers	44.sol / 44_attack.sol / 45_oraclize.sol
Assignment 3	Create a game of rock-paper-scissors
Class 45	Advanced Solidity: Attacks samples by invalidating contracts	45-1.sol / 45-2.sol
Class 46	Advanced Solidity: Re-entrancy attack	46.sol / 46_attack.sol
Class 47	Advanced Solidity: Saving Gas fees by compress data	47.sol
Class 48	Advanced Solidity: Saving Gas fees by optimizing the sequence of declaring variables, avoiding repeatitive functions	48.sol
Class 49	Install Ganache and test smart contracts
Class 50	Instantiate EC2 on AWS and deploy a website	index_50.html (Demo)
Class 51 - 52	Introduction to frontend and JavaScripts	index_51.html (Demo) / index_52.html (Demo)
Class 53	Introduction to Web3.js	index_53.html (Demo)
Class 54	Call a wallet to read wallet address, balances	index_54.html (Demo) / index_54_v2.html (Demo)
Class 55	Using Infura to read public parameters	index_55.html (Demo)
Assignment 4	Create a game of Greedy599 (similar to Fomo3D)

Disclaimer

The assignment and solutions are only for reference purposes to support new learners who may get stuck in assignments. Learning is a long-term journey. Never give up and you will make it!!