題目:模仿靜态變量的用法。
程式分析:構造類,了解類的方法與變量。
代碼:
def dummy():
i = 0
print(i)
i += 1
class cls:
i = 0
def dummy(self):
print(self.i)
self.i += 1
a = cls()
for i in range(50):
dummy() # 建議這兩個方法分别調用看運作效果
a.dummy()
效果:
我們發現dummy()函數的調用輸出結果全部是0
![](https://img.laitimes.com/img/_0nNw4CM6IyYiwiM6ICdiwiI0gTMx81dsQWZ4lmZf1GLlpXazVmcvwFciV2dsQXYtJ3bm9CX9s2RkBnVHFmb1clWvB3MaVnRtp1XlBXe0xCMy81dvRWYoNHLwEzX5xCMx8FesU2cfdGLwMzX0xiRGZkRGZ0Xy9GbvNGLpZTY1EmMZVDUSFTU4VFRR9Fd4VGdsYTMfVmepNHLrJXYtJXZ0F2dvwVZnFWbp1zczV2YvJHctM3cv1Ce-cmbw5COwczM4ETO2EDNlZzYiNWZyYzXyATN0QTM1AzLchDMyIDMy8CXn9Gbi9CXzV2Zh1WavwVbvNmLvR3YxUjLyM3Lc9CX6MHc0RHaiojIsJye.png)