Programmer Think

Overview of 0x1 When I started ETF Intelligence Contract Development, I first faced a choice, Hardhat Vs Truffle Vs Remix, which development tool should I choose. I searched Google for a lot of comparisons, including Holliville Valdez's " Hardhat Vs Truffle Vs Remix - Which Is The Best For Blockchain Development?> This article helped me ...

1, Prepare linux environment or install a virtual machine in windows. The following are the tests under Linux environment. 2, Prerequisites Git ,cURL,Docker,Docker Compose 1. git installation sudo yum install git test git --version 2,cURL sudo yum install curl 3,Docker ,Docker Compose Docker should be able to install official documents. I hav ...

I am xuetianyu, an FPGA enthusiast. My research direction is FPGA Architecture Exploration and digital IC design.Focus on official account [integrated circuit design course], get more learning materials, and pull you into "IC design exchange group".QQIC Design Communication Group No.: 866169462.Development board used: punctual atom Da ...

Smart contract overview Smart contract is the software running on the blockchain. It is often compared to "vending machine", because it is easy to understand: the vending machine accepts and executes external instructions. When the customer selects the goods and pays, the vending machine will release the goods to the customer without ...

For the pre knowledge of Gear contract, you can first understand this article: Gear contract disclosure. This article will mainly explain how to use Rust to create a simple decentralized application on the Gear blockchain network. We take a voting application as an example to study the infrastructure of Gear smart contract, and learn how to ...

Abstract The first article of stepping on the pit writes the example given on the official website, which records how to test your Contract Caliper version is v0 four point two Repository In this article, we continue to use Github Repo on the official website to create a new contract. In order to simplify, we still use Sample to change the ...

Defcon 2018 Qualify: Easy Pisy 1. Source Code The title is given to two people: execute.php <?php include 'common.php'; if ($_SERVER['REQUEST_METHOD'] === 'GET') { print highlight_string(file_get_contents("execute.php"), TRUE); exit(0); } $keys = get_keys(); $privkey = $keys[0]; $pubkey = $keys[1]; $file_info = $_FILES['userf ...

1, Download of parity 1. Open our Linux virtual machine in advance. Then open our folder and create a parity file. Of course, it can also be named after other names, preferably parity.      2. Then enter the PARITY folder, open it in the terminal, and enter the following under the authority of administrator: wget https://re ...

I am xuetianyu, an FPGA enthusiast. My research direction is FPGA Architecture Exploration and SOC design.Focus on official account [integrated circuit design course], pull you into "IC design exchange group".1. PrefaceIt took nearly a week to realize a two-dimensional code recognition alone. In this article, I will introduce in detai ...

[BlockChain] go realize BlockChain 7: Network introduction So far, the prototype we have built has all the key features of blockchain: anonymous, secure and randomly generated addresses; Blockchain data storage; Workload proof system; Store transactions reliably. Although these features are indispensable, there are still deficiencies. It is t ...