go get -u gorm.io/gorm

go get -u gorm.io/driver/mysql

package appinit

import (
    appglobal "gin_gorm_mark_vscode/applications/app_global"

    "gorm.io/driver/mysql"
    "gorm.io/gorm"
    "gorm.io/gorm/logger&quo

go get -u "gopkg.in/yaml.v3"

mysql:
  host: 47.120.55.99
  port: 3306
  db: go_test
  user: root
  password: chenhaifeng
  log_level: dev
  config: ""

system:
  host: "0.0.0.0"
  port: 8080
  env: debug

type Config struct

pip install alembic 

alembic init alembic

sqlalchemy.url = mysql+pymysql://root:chenhaifeng@47.120.55.99:3306/fastapi

# target_metadata = mymodel.Base.metadata
from applications.extensions import metadata
from applications.models im

pip install databases
pip install databases[aiomysql]
pip install pymysql

from typing import List

import databases
import sqlalchemy
from fastapi import FastAPI
from pydantic import BaseModel

DATABASE_URL = "mysql+pymysql://root:chenhaifeng@

go get -u "github.com/gin-gonic/gin"

go run main.go

go mod init xxxx包名

# windows中终端输入
go env -w GOPROXY=https://proxy.golang.com.cn,direct

from pathlib import Path
import os, csv, random

# 1. 分类
class_name_list = os.listdir('images')
class_to_num = {class_name: num for num, class_name in enumerate(class_name_list)}
# 文件夹名:排序 {'err': 0, 'suc': 1}

# 2. 合并所有数据
image_dir = []
for class_name in class_to_num

git rev-list --objects --all | grep "$(git verify-pack -v .git/objects/pack/*.idx | sort -k 3 -n | tail -10 | awk '{print$1}')"

    c72f061f68cdf46dec58b67d7148639b3ef32e37 src/media/adver/1.jpg
    758afee990983813c34b2c6a39ae2e76ffb

h左
j下
k上
l右

gg最上
G最下

跳转
ctrl + O下一个文件
ctrl + I上一个文件
g + d 查看当前函数内部

shift + e 前一个单词
shift + b 后一个单词

y直接复制
yaw 复制整个单词
y4j 复制下面4行的内容
y4k 复制下4行的内容
yfr 复制到r为止的内容

p粘贴

d 删除
d8j 删除下8行的内容
dfr 删除到r为止的内
d4k 删除上4行的内容

u 相当于ctrl + z撤回

i 当前光标开始输入
大写i 这一行的开头开始输入
a 当前光标的前

pip install orjson

# import orjson
import json
import random
from time import time


start = time()


json1 = [
    {
        "id": 9999,
        "value": random.uniform(0, 1000)
    } 
    for _ in range(2000000)
]

# 1. 第三方orjson速度 1.5917122364044