设计一个函数，使用递归法求x^n，并在住函数中调用代码,C代码库,德仔网

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【C】设计一个函数，使用递归法求x^n，并在住函数中调用

作者:Dezai.CN / 发布于2011/7/8/ 809

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<div><span style="color: #008000">//</span><span style="color: #008000">程序4：设计一个函数，使用递归法求x^n，并在住函数中调用</span><span style="color: #008000">
</span><span style="color: #000000">#include </span><span style="color: #000000"><</span><span style="color: #000000">stdio.h</span><span style="color: #000000">></span><span style="color: #000000">

</span><span style="color: #0000ff">float</span><span style="color: #000000"> fun(</span><span style="color: #0000ff">float</span><span style="color: #000000"> x, </span><span style="color: #0000ff">int</span><span style="color: #000000"> n)
{
 </span><span style="color: #0000ff">if</span><span style="color: #000000"> (n</span><span style="color: #000000">!=</span><span style="color: #800080">1</span><span style="color: #000000">)
 {
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> x</span><span style="color: #000000">*</span><span style="color: #000000">fun(x,n</span><span style="color: #000000">-</span><span style="color: #800080">1</span><span style="color: #000000">);
 }
 </span><span style="color: #0000ff">else</span><span style="color: #000000">
 {
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> x;
 }
}

</span><span style="color: #0000ff">int</span><span style="color: #000000"> main()
{
 </span><span style="color: #0000ff">float</span><span style="color: #000000"> x;
 </span><span style="color: #0000ff">int</span><span style="color: #000000"> n;
 printf(</span><span style="color: #800000">"</span><span style="color: #800000">请输入数据\nx=</span><span style="color: #800000">"</span><span style="color: #000000">);
 scanf(</span><span style="color: #800000">"</span><span style="color: #800000">%f</span><span style="color: #800000">"</span><span style="color: #000000">,</span><span style="color: #000000">&</span><span style="color: #000000">x);
 printf(</span><span style="color: #800000">"</span><span style="color: #800000">n=</span><span style="color: #800000">"</span><span style="color: #000000">);
 scanf(</span><span style="color: #800000">"</span><span style="color: #800000">%d</span><span style="color: #800000">"</span><span style="color: #000000">, </span><span style="color: #000000">&</span><span style="color: #000000">n);
 printf(</span><span style="color: #800000">"</span><span style="color: #800000">x^n=%f\n</span><span style="color: #800000">"</span><span style="color: #000000">,fun(x,n));
 </span><span style="color: #0000ff">return</span><span style="color: #000000"> </span><span style="color: #800080">1</span><span style="color: #000000">;
}</span></div>
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