Seahorse

HelloWorld

• 安装Seahorse

cargo install seahorse-dev

• seahorse init demo
• seahorse build

# fizzbuzz
# Built with Seahorse v0.1.0
#
# On-chain, persistent FizzBuzz!

from seahorse.prelude import *

declare_id('Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS')

class FizzBuzz(Account):
  fizz: bool
  buzz: bool
  n: u64

@instruction
def init(owner: Signer, fizzbuzz: Empty[FizzBuzz]):
  fizzbuzz.init(payer = owner, seeds = ['fizzbuzz', owner])

@instruction
def do_fizzbuzz(fizzbuzz: FizzBuzz, n: u64):
  fizzbuzz.fizz = n % 3 == 0
  fizzbuzz.buzz = n % 5 == 0
  if not fizzbuzz.fizz and not fizzbuzz.buzz:
    fizzbuzz.n = n
  else:
    fizzbuzz.n = 0