如何在读取hashkey时避免多个redis调用

import redis

r = redis.Redis(host='localhost', port=6379, db=0)
hash_key = 'my_hash'

# 获取所有字段和值
all_data = r.hgetall(hash_key)
print(all_data)

import redis

r = redis.Redis(host='localhost', port=6379, db=0)
hash_key = 'my_hash'
fields = ['field1', 'field2', 'field3']

# 获取指定字段的值
values = r.hmget(hash_key, fields)
print(values)

import redis

r = redis.Redis(host='localhost', port=6379, db=0)
hash_key = 'my_hash'
fields = ['field1', 'field2', 'field3']

# 创建一个pipeline对象
pipe = r.pipeline()

# 添加多个命令到pipeline
for field in fields:
    pipe.hget(hash_key, field)

# 执行pipeline中的所有命令并获取结果
results = pipe.execute()
print(results)

import redis

r = redis.Redis(host='localhost', port=6379, db=0)
hash_key = 'my_hash'
fields = ['field1', 'field2', 'field3']

# Lua脚本，用于获取多个字段的值
lua_script = """
local result = {}
for i, field in ipairs(KEYS) do
    result[i] = redis.call('HGET', ARGV[1], field)
end
return result
"""

# 执行Lua脚本
results = r.eval(lua_script, len(fields), *fields, hash_key)
print(results)