在Latex中绘制有向图

Question

我想从A画一个箭头，指向图中的B，C，D..。我该如何在Latex中做到这一点。

到目前为止，我有：

\begin{tikzpicture}
\node[circle,draw](z){$A$}
  child{node[circle,draw]{B}} 
  child{node[circle,draw]{C}}
  child{node[circle,draw]{D}}
  child{node[circle,draw]{E}}
  child{node[circle,draw]{F}}
  child{node[circle,draw]{G}};
\end{tikzpicture}

Answer 1

nvm，我知道了。

\begin{tikzpicture}[edge from parent/.style={draw,-latex}]
\node[circle,draw](z){$A$}
  child{node[circle,draw]{B}} 
  child{node[circle,draw]{C}}
  child{node[circle,draw]{D}}
  child{node[circle,draw]{E}}
  child{node[circle,draw]{F}}
  child{node[circle,draw]{G}};
\end{tikzpicture}