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			26 lines
		
	
	
		
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			26 lines
		
	
	
		
			726 B
		
	
	
	
		
			HTML
		
	
	
	
	
	
<p>URL化。编写一种方法,将字符串中的空格全部替换为<code>%20</code>。假定该字符串尾部有足够的空间存放新增字符,并且知道字符串的“真实”长度。(注:用<code>Java</code>实现的话,请使用字符数组实现,以便直接在数组上操作。)</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>:"Mr John Smith    ", 13
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<strong>输出</strong>:"Mr%20John%20Smith"
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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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<strong>输入</strong>:"               ", 5
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<strong>输出</strong>:"%20%20%20%20%20"
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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>字符串长度在 [0, 500000] 范围内。</li>
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</ul>
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