trees-parentheticrepresentation.html
来自「经典的数据结构源代码(java 实现)」· HTML 代码 · 共 27 行
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<html><head><title>Code Fragment</title></head><body text=#000000><center></center><br><br><dl><dd><pre><font color=#8000a0>public</font> <font color=#8000a0>static</font> <E> <font color=#8000a0><font color=#8000a0>String</font> </font><font color=#0000ff>parentheticRepresentation</font>(Tree<E> T, Position<E> v) { <font color=#8000a0><font color=#8000a0>String</font> </font>s = v.<font color=#0000ff>element</font>().<font color=#0000ff>toString</font>(); <font color=#ff0080>// main visit action</font> <font color=#ff8000>if</font><font color=#0000ff> </font>(T.<font color=#0000ff>isInternal</font>(v)) { <font color=#8000a0>Boolean </font>firstTime = true; <font color=#ff8000>for</font><font color=#0000ff> </font>(Position<E> w : T.<font color=#0000ff>children</font>(v)) <font color=#ff8000>if</font><font color=#0000ff> </font>(firstTime) { s += <font color=#008000>" ( "</font> + <font color=#0000ff>parentheticRepresentation</font>(T, w); <font color=#ff0080>// the first child</font> firstTime = false; } <font color=#8000a0><font color=#ff8000>else</font> </font>s += <font color=#008000>", "</font> + <font color=#0000ff>parentheticRepresentation</font>(T, w); <font color=#ff0080>// subsequent child</font> s += <font color=#008000>" )"</font>; <font color=#ff0080>// close parenthesis</font> } <font color=#8000a0><font color=#ff8000>return</font> </font>s;}</dl></body></html>
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