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似乎有一个错误在波形SDKReference Manual supplied with the SDK. The document says: But the function actually requires the idxChannel AND idxNode, like this: I'm running the following code segment to get the different node options: num_channels = c_int() dwf.FDwfAnalogIOChannelCount(hdwf, byref(num_channels)) print(num_channels.value, "channels") for i in range(0, num_channels.value): print("Channel", i) channel_name = create_string_buffer(32) channel_label = create_string_buffer(16) dwf.FDwfAnalogIOChannelName(hdwf, c_int(i), channel_name, channel_label) print(str(channel_name.value), str(channel_label.value)) num_nodes = c_int() dwf.FDwfAnalogIOChannelInfo(hdwf, c_int(i), byref(num_nodes)) for n in range(0, num_nodes.value): node_name = create_string_buffer(32) node_label = create_string_buffer(16) dwf.FDwfAnalogIOChannelNodeName(hdwf, c_int(i), c_int(n), node_name, node_label) print(" ", str(node_name.value), str(node_label.value))