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			38 lines
		
	
	
		
			999 B
		
	
	
	
		
			HTML
		
	
	
	
	
	
<p>请你编写一个生成器函数,并返回一个可以生成 <strong>斐波那契数列</strong> 的生成器对象。</p>
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<p><strong>斐波那契数列</strong> 的递推公式为 <code>X<sub>n</sub> = X<sub>n-1</sub> + X<sub>n-2</sub></code> 。</p>
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<p>这个数列的前几个数字是 <code>0, 1, 1, 2, 3, 5, 8, 13</code> 。</p>
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<p> </p>
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<p><strong>示例 1:</strong></p>
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<pre>
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<strong>输入:</strong>callCount = 5
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<b>输出:</b>[0,1,1,2,3]
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<strong>解释:</strong>
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const gen = fibGenerator();
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gen.next().value; // 0
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gen.next().value; // 1
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gen.next().value; // 1
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gen.next().value; // 2
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gen.next().value; // 3
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</pre>
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<p><strong>示例 2:</strong></p>
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<pre>
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<b>输入:</b>callCount = 0
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<strong>输出:</strong>[]
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<b>解释:</b>gen.next() 永远不会被调用,所以什么也不会输出
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</pre>
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<p> </p>
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<p><strong>提示:</strong></p>
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<ul>
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	<li><code>0 <= callCount <= 50</code></li>
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</ul>
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