[蟒蛇菜谱] Python方便使用的级联进度信息

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class StepedProgress:     '''方便显示进度的级联进度信息。     '''     def __init__(self, stockPercent=[1], parentProgress=None):         self.percent = 0         self.info = ''         self.subProgress = []         self.cur_running_process = 0         self.stockPercent = stockPercent         self.parentProgress = parentProgress           # 重新计算进度比，防止初始化时的值加起来不是1         w = 0.0         for p in self.stockPercent:             w += p         for i in range(0, len(stockPercent)):             stockPercent[i] = stockPercent[i]/w           # 初始化子进度         if len(stockPercent) == 1:             self.subProgress = None         else:             for p in self.stockPercent:                 self.subProgress.append(StepedProgress(parentProgress=self))       def subprogress(self, index):         if index >= self.subcount():             return self.subProgress[self.subcount()-1]         elif index < self.cur_running_process:             return self.subProgress[self.cur_running_process]         else:             self.cur_running_process = index             return self.subProgress[index]       def subcount(self):         return len(self.subProgress)       def notifyParentProgress(self, percent, info=None):         new_percent = 0.0         for i in range(0, self.cur_running_process):             new_percent += self.stockPercent[i]         new_percent += percent/100.0 * self.stockPercent[self.cur_running_process]         new_percent *= 100.0         self.notifyProgress(new_percent, info)       def notifyProgress(self, percent, info=None):         if percent > self.percent:             self.percent = percent         if info is not None:             self.info = info         if self.parentProgress is not None:             self.parentProgress.notifyParentProgress(percent, info)         else:             print self.info[:77].ljust(80, '.'), "[%0.1f%%]"%self.percent   if __name__ == "__main__":     s = StepedProgress([60, 40])     s.notifyProgress(10, 'aaa')       s1 = s.subprogress(0)     s1.notifyProgress(50, 'bbb')       s3 = s.subprogress(1)     s3 = StepedProgress([1, 1], parentProgress=s3.parentProgress) #级联子进度     s3.notifyProgress(20, 'ddd')       s4 = s3.subprogress(0)     s4.notifyProgress(50, 'eee')       s5 = s3.subprogress(1)     s5.notifyProgress(50, 'fff')

 

输出结果：

aaa............................................................................. [10.0%]
bbb............................................................................. [30.0%]
ddd............................................................................. [68.0%]
eee............................................................................. [70.0%]
fff............................................................................. [90.0%]