Python 中线程部分的代码实践求教 主要是类的
import mathimport timefrom threading import Threadclass SquareRootCaluatotor: """This class spawn a separate thread to calculate a bunch of square roots ,and checks in it once a second until it finishes""" def __init__(self,target): """Turn on the calculator thread and,while waiting for it to finish,periodically monitor its progress""" self.result = [] counter = self.CalculatorThread(self,target) print("Turning on the calculator thread") counter.start() while len(self.result)1: limit = sys.argv[1] try: limit = int(limit) except ValueError: print("Usage:%s [number of square roots to calculate" % sys.argv[0]) SquareRootCaluatotor(limit)求教：1在给SquareRootCaluatotor类实例后运行，总是提示无CalculatorThread属性，请问这是为什么？
2 这个文件的正确运行步骤是什么？我给SquareRootCaluatotor赋变量运行是否正确？ |
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