def singleton(cls):
threadNames = [] # 线程名称列表
instances = {} # 实例字典
def get_instance(threadName, *args, **kwargs):
"""
获取单例实例，通过线程名创建单例，保障每个线程里面的实例保持一致
参数:
- threadName: 线程名称
返回:
- instances[cls]: 单例实例
"""
if threadName not in threadNames: # 如果线程名称不在线程名称列表中
instances[cls] = cls(threadName,*args) # 实例字典中存储类的实例
threadNames.append(threadName) # 将线程名称添加到线程名称列表中
return instances[cls] # 返回实例字典中存储的类的实例
return get_instance # 返回get_instance函数
@singleton
class threadNameSingleton:
def __init__(self,threadName,*args):
print(f"{threadName} 单例创建成功")
if __name__ == '__main__':
pc1 = threadNameSingleton("pc1")
pc11 = threadNameSingleton("pc1")
# print(threadNames)
pc2 = threadNameSingleton("pc2")
pc22 = threadNameSingleton("pc2")
# print(threadNames)
print(id(pc1), id(pc11))
print(id(pc1), id(pc2))
print(id(pc2), id(pc22))
标签：__,threadName,实例,线程,单例,多线程,id From： https://www.cnblogs.com/zwnsyw/p/17867937.html