# your code goes here
print("--- AI训练常用工具 ---") # 增加行1:打印标题
tools = ["TensorFlow", "PyTorch", "Keras"]
print("初始工具列表:",tools)
print("当前工具数量:",len(tools)) # 增加行2:打印列表长度
print("每个工具名称:") # 增加行3:提示下面逐项打印
for t in tools: # 增加行4:循环逐项打印
print("-",t)
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