\tikzstyle{input} = [rectangle, minimum width = 1cm, minimum height = 3cm, text centered] \tikzstyle{output} = [rectangle, minimum width = 1cm, minimum height = 3cm, text centered] \tikzstyle{convolution} = [rectangle, minimum width = 0.7cm, minimum height = 2cm, text centered, fill = red!10, draw = black, thick] \tikzstyle{activation} = [rectangle, minimum width = 0.7cm, minimum height = 2cm, text centered, fill = blue!10, draw = black, thick] \tikzstyle{pooling} = [rectangle, thick, minimum width = 0.7cm, minimum height = 2cm, text centered, draw = black, fill = ugreen!10] \tikzstyle{arrow} = [thick, ->, >=stealth] \begin{tikzpicture}[node distance = 0cm] \node(input)[input, align=center]{输\\入}; \node(convolution)[convolution,right of = input,xshift = 2cm, align=center]{卷\\积\\层}; \node(activation)[activation,right of = convolution,xshift = 2cm, align=center]{激\\活\\函\\数}; \node(pooling)[pooling,right of = activation,xshift = 2cm, align=center]{池\\化\\层}; \node(output)[output,right of = pooling,xshift= 2cm, align=center]{输\\出}; \draw [arrow] (input) -- ([xshift=-0.15cm]convolution.180); \draw [arrow] ([xshift=0.15cm]convolution.0) -- ([xshift=-0.15cm]activation.180); \draw [arrow] ([xshift=0.15cm]activation.0) -- ([xshift=-0.15cm]pooling.180); \draw [arrow] ([xshift=0.15cm]pooling.0) -- (output); \end{tikzpicture}