Python 代码块

JSON 的加载处理

import json

字符串 -> JSON 对象

new_dict = json.loads(json_str)
print(new_dict)
print(type(new_dict))

JSON 对象 -> 字符串

test_dict = {'bigberg': [7600, {1: [['iPhone', 6300], ['Bike', 800], ['shirt', 300]]}]}
print(test_dict)
print(type(test_dict))

json_str = json.dumps(test_dict)
print(json_str)
print(type(json_str))

从文件读取 JSON

with open("../config/record.json",'r') as load_f:
    load_dict = json.load(load_f)
    print(load_dict)

JSON 写入文件

with open("../config/record.json","w") as write_f:
    json.dump(new_dict, write_f)
    print("加载入文件完成...")

随机数

import random

单个随机数

i = random.randint(A,B)

随机不重复列表

l = random.sample(range(A,B), COUNT)

计算 Hash 值