This repo are learning notes of an online course of Learning Solidity from 0 to 1 (Chinese) on Hahow.
Lecturer: XiXi Huang
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.
| 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) | |
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!!
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