python在控制台输出进度条的方法

本文实例讲述了python在控制台输出进度条的方法。分享给大家供大家参考。具体实现方法如下：

进度条效果如下所示:

    |#############################---------------------|
    59 percent done

代码如下:

    class ProgressBar():
      def __init__(self, width=50):
        self.pointer = 0
        self.width = width
      def __call__(self,x):
         # x in percent
         self.pointer = int(self.width*(x/100.0))
         return "|" + "#"*self.pointer + "-"*(self.width-self.pointer)+\
            "|\n %d percent done" % int(x)

Test function (for windows system, change "clear" into "CLS"):

    if __name__ == '__main__':
      import time, os
      pb = ProgressBar()
      for i in range(101):
        os.system('clear')
        print pb(i)
        time.sleep(0.1)

希望本文所述对大家的Python程序设计有所帮助。