how to program discord bot code example

Example 1: Discord.py bot example

#Anything commented out is optional

import discord
from discord.ext import commands

bot = commands.Bot(command_prefix='prefix here')

@bot.event
async def on_ready():
#   await bot.change_presence(activity=discord.Game(name="Rich Presence Here"))
    print('Logged in as: ' + bot.user.name)
    print('Ready!\n')
    
@bot.command()
async def commandname(ctx, *, somevariable)
#If you don't need a variable, then you only need (ctx)
#	"""Command description"""
	Code goes here
	await ctx.send('Message')

bot.run('yourtoken')

Example 2: How to setup discord.py bot

#Import essentials
import discord
from discord.ext import commands
import asyncio
#Some things that makes your life easier! (aliases to make code shorter)
client = commands.Bot(command_prefix='!') #change it if you want
token = 'YOUR TOKEN HERE' #Put your token here
#Making a first text command! (Respond's when a user triggers it on Discord)
@client.command()
async def hello(ctx):
    await ctx.send('Hello I am a Test Bot!')
#Tell's us if the bot is running / Runs the bot on Discord
@client.event
async def on_ready():
    print('Hello, I am now running')
    
    
    
client.run(token)

Example 3: how to make disord bot

follow this https://discordpy.readthedocs.io/en/latest/discord.html to make bot account 
use discord api of your laugaungue of choice
discord.py https://discordpy.readthedocs.io/en/latest/index.html
discord.js  https://discord.js.org/#/