项目结构# encoding: utf-8 # 版权所有 2026 ©涂聚文有限公司™ ® # 许可信息查看言語成了邀功盡責的功臣還需要行爲每日來值班嗎 # 描述Interpreter Pattern 解释器模式 # Author : geovindu,Geovin Du 涂聚文. # IDE : PyCharm 2024.3.6 python 3.11 # os : windows 10 # database : mysql 9.0 sql server 2019, postgreSQL 17.0 Oracle 21c Neo4j # Datetime : 2026/4/28 21:43 # User : geovindu # Product : PyCharm # Project : pydesginpattern # File : jewelry_context.py from dataclasses import dataclass dataclass class JewelryContext: 珠宝上下文存储所有珠宝属性 name: str material: str weight: float 0.0 purity: float 0.0 price: float 0.0 clarity: str # encoding: utf-8 # 版权所有 2026 ©涂聚文有限公司™ ® # 许可信息查看言語成了邀功盡責的功臣還需要行爲每日來值班嗎 # 描述Interpreter Pattern 解释器模式 # Author : geovindu,Geovin Du 涂聚文. # IDE : PyCharm 2024.3.6 python 3.11 # os : windows 10 # database : mysql 9.0 sql server 2019, postgreSQL 17.0 Oracle 21c Neo4j # Datetime : 2026/4/28 21:50 # User : geovindu # Product : PyCharm # Project : pydesginpattern # File : base_expression.py from abc import ABC, abstractmethod from Interpreter.context.jewelry_context import JewelryContext class BaseExpression(ABC): 职责抽象表达式所有规则必须实现 abstractmethod def interpret(self, context: JewelryContext) - bool | float: 解释规则返回判断结果 或 计算结果 :param context: :return: pass # encoding: utf-8 # 版权所有 2026 ©涂聚文有限公司™ ® # 许可信息查看言語成了邀功盡責的功臣還需要行爲每日來值班嗎 # 描述Interpreter Pattern 解释器模式 # Author : geovindu,Geovin Du 涂聚文. # IDE : PyCharm 2024.3.6 python 3.11 # os : windows 10 # database : mysql 9.0 sql server 2019, postgreSQL 17.0 Oracle 21c Neo4j # Datetime : 2026/4/28 21:54 # User : geovindu # Product : PyCharm # Project : pydesginpattern # File : calculate_exp.py from Interpreter.expression.base_expression import BaseExpression from Interpreter.context.jewelry_context import JewelryContext class GoldPriceExpression(BaseExpression): 原子规则黄金价格计算可扩展钻石 / 宝石 def __init__(self, base_price: float, craft_fee: float): :param base_price: :param craft_fee: self.base_price base_price self.craft_fee craft_fee def interpret(self, context: JewelryContext) - float: :param context: :return: total context.weight * self.base_price self.craft_fee return round(total, 2) # encoding: utf-8 # 版权所有 2026 ©涂聚文有限公司™ ® # 许可信息查看言語成了邀功盡責的功臣還需要行爲每日來值班嗎 # 描述Interpreter Pattern 解释器模式 # Author : geovindu,Geovin Du 涂聚文. # IDE : PyCharm 2024.3.6 python 3.11 # os : windows 10 # database : mysql 9.0 sql server 2019, postgreSQL 17.0 Oracle 21c Neo4j # Datetime : 2026/4/28 21:52 # User : geovindu # Product : PyCharm # Project : pydesginpattern # File : compare_exp.py from Interpreter.expression.base_expression import BaseExpression from Interpreter.context.jewelry_context import JewelryContext class GreaterThanExpression(BaseExpression): 原子规则数值比较 def __init__(self, field: str, threshold: float): :param field: :param threshold: self.field field self.threshold threshold def interpret(self, context: JewelryContext) - bool: :param context: :return: value getattr(context, self.field, 0.0) return value self.threshold # encoding: utf-8 # 版权所有 2026 ©涂聚文有限公司™ ® # 许可信息查看言語成了邀功盡責的功臣還需要行爲每日來值班嗎 # 描述Interpreter Pattern 解释器模式 # Author : geovindu,Geovin Du 涂聚文. # IDE : PyCharm 2024.3.6 python 3.11 # os : windows 10 # database : mysql 9.0 sql server 2019, postgreSQL 17.0 Oracle 21c Neo4j # Datetime : 2026/4/28 21:53 # User : geovindu # Product : PyCharm # Project : pydesginpattern # File : material_exp.py from Interpreter.expression.base_expression import BaseExpression from Interpreter.context.jewelry_context import JewelryContext class MaterialMatchExpression(BaseExpression): 原子规则材质匹配 def __init__(self, material: str): :param material: self.material material def interpret(self, context: JewelryContext) - bool: :param context: :return: return context.material self.material # encoding: utf-8 # 版权所有 2026 ©涂聚文有限公司™ ® # 许可信息查看言語成了邀功盡責的功臣還需要行爲每日來值班嗎 # 描述Interpreter Pattern 解释器模式 # Author : geovindu,Geovin Du 涂聚文. # IDE : PyCharm 2024.3.6 python 3.11 # os : windows 10 # database : mysql 9.0 sql server 2019, postgreSQL 17.0 Oracle 21c Neo4j # Datetime : 2026/4/28 21:55 # User : geovindu # Product : PyCharm # Project : pydesginpattern # File : and_exp.py from Interpreter.expression.base_expression import BaseExpression from Interpreter.context.jewelry_context import JewelryContext class AndExpression(BaseExpression): 组合规则AND def __init__(self, exp1: BaseExpression, exp2: BaseExpression): :param exp1: :param exp2: self.exp1 exp1 self.exp2 exp2 def interpret(self, context: JewelryContext) - bool: :param context: :return: return self.exp1.interpret(context) and self.exp2.interpret(context) # encoding: utf-8 # 版权所有 2026 ©涂聚文有限公司™ ® # 许可信息查看言語成了邀功盡責的功臣還需要行爲每日來值班嗎 # 描述Interpreter Pattern 解释器模式 # Author : geovindu,Geovin Du 涂聚文. # IDE : PyCharm 2024.3.6 python 3.11 # os : windows 10 # database : mysql 9.0 sql server 2019, postgreSQL 17.0 Oracle 21c Neo4j # Datetime : 2026/4/28 21:55 # User : geovindu # Product : PyCharm # Project : pydesginpattern # File : or_exp.py from Interpreter.expression.base_expression import BaseExpression from Interpreter.context.jewelry_context import JewelryContext class OrExpression(BaseExpression): 组合规则OR def __init__(self, exp1: BaseExpression, exp2: BaseExpression): :param exp1: :param exp2: self.exp1 exp1 self.exp2 exp2 def interpret(self, context: JewelryContext) - bool: :param context: :return: return self.exp1.interpret(context) or self.exp2.interpret(context)# encoding: utf-8 # 版权所有 2026 ©涂聚文有限公司™ ® # 许可信息查看言語成了邀功盡責的功臣還需要行爲每日來值班嗎 # 描述Interpreter Pattern 解释器模式 # Author : geovindu,Geovin Du 涂聚文. # IDE : PyCharm 2024.3.6 python 3.11 # os : windows 10 # database : mysql 9.0 sql server 2019, postgreSQL 17.0 Oracle 21c Neo4j # Datetime : 2026/4/28 21:56 # User : geovindu # Product : PyCharm # Project : pydesginpattern # File : jewelry_rule_service.py from Interpreter.context.jewelry_context import JewelryContext from Interpreter.expression.base_expression import BaseExpression class JewelryRuleService: 业务服务层对外提供规则解释能力解耦调用方 staticmethod def evaluate(expression: BaseExpression, context: JewelryContext) - bool | float: 执行规则解释 :param expression: :param context: :return: return expression.interpret(context)调用# encoding: utf-8 # 版权所有 2026 ©涂聚文有限公司™ ® # 许可信息查看言語成了邀功盡責的功臣還需要行爲每日來值班嗎 # 描述Interpreter Pattern 解释器模式 # Author : geovindu,Geovin Du 涂聚文. # IDE : PyCharm 2024.3.6 python 3.11 # os : windows 10 # database : mysql 9.0 sql server 2019, postgreSQL 17.0 Oracle 21c Neo4j # Datetime : 2026/4/28 22:01 # User : geovindu # Product : PyCharm # Project : pydesginpattern # File : InterpreterBll.py Interpreter / ├── cmd/ │ └── main.go ├── internal/ # 内部业务包外部不可引用 │ ├── context/ # 上下文环境变量容器 │ │ └── context.go │ ├── expression/ # 解释器表达式核心终结符非终结符 │ │ └── expr.go │ ├── parser/ # 语法解析器 │ │ └── parser.go │ └── service/ # 业务服务层 │ └── price_service.go └── go.mod from Interpreter.context.jewelry_context import JewelryContext from Interpreter.expression.terminal.compare_exp import GreaterThanExpression from Interpreter.expression.terminal.material_exp import MaterialMatchExpression from Interpreter.expression.terminal.calculate_exp import GoldPriceExpression from Interpreter.expression.non_terminal.and_exp import AndExpression from Interpreter.service.jewelry_rule_service import JewelryRuleService class InterpreterBll(object): def demo(self): :return: # 1. 构建珠宝上下文 jewelry JewelryContext( name999足金戒指, material黄金, weight5.2, purity99.9, clarityVS1 ) # 2. 规则服务 service JewelryRuleService() # ------------------- 规则1计算黄金价格 ------------------- price_exp GoldPriceExpression(base_price450, craft_fee150) price service.evaluate(price_exp, jewelry) print(f售价{price} 元) # ------------------- 规则2高品质黄金 ------------------- high_purity GreaterThanExpression(purity, 99.9) is_gold MaterialMatchExpression(黄金) high_quality_exp AndExpression(high_purity, is_gold) result service.evaluate(high_quality_exp, jewelry) print(f是否高品质黄金{result}) # ------------------- 规则3高端珠宝 ------------------- platinum JewelryContext(material铂金, price6800) high_price GreaterThanExpression(price, 5000) is_platinum MaterialMatchExpression(铂金) filter_exp AndExpression(high_price, is_platinum) print(f是否高端珠宝{service.evaluate(filter_exp, platinum)})输出