Javascript中decodeURI()与decodeURIComponent()区别

 decodeURI()函数：

1

<p>&nbsp;</p><p><span class="tag">&lt;html&gt;</span><br /><span class="pln">  </span><span class="tag">&lt;body&gt;</span><br /><span class="pln">    </span><span class="tag">&lt;script</span><span class="pln"> </span><span class="atn">type</span><span class="pun">=</span><span class="atv">&quot;text/javascript&quot;</span><span class="tag">&gt;</span><br /><span class="pln">      </span><span class="kwd">var</span><span class="pln"> test </span><span class="pun">=</span><span class="pln"> </span><span class="str">&quot;</span><a href="http://www.test.com/My" rel="nofollow"><span class="str">http://www.test.com/My</span></a><span class="str"> test/&quot;</span><span class="pun">;  </span><span class="pln"> </span><br /><span class="pln">      </span><span class="kwd">var</span><span class="pln"> test1 </span><span class="pun">=</span><span class="pln"> encodeURI</span><span class="pun">(</span><span class="pln">test</span><span class="pun">);</span><br /><span class="pln">      </span><span class="kwd">var</span><span class="pln"> test2 </span><span class="pun">=</span><span class="pln"> decodeURI</span><span class="pun">(</span><span class="pln">test1</span><span class="pun">);</span><br /><span class="pln">      </span><span class="kwd">var</span><span class="pln"> test3 </span><span class="pun">=</span><span class="pln"> encodeURIComponent</span><span class="pun">(</span><span class="pln">test</span><span class="pun">);</span><br /><span class="pln">      </span><span class="kwd">var</span><span class="pln"> test4 </span><span class="pun">=</span><span class="pln"> decodeURIComponent</span><span class="pun">(</span><span class="pln">test3</span><span class="pun">);</span></p><br /><p><span class="pln">      document</span><span class="pun">.</span><span class="pln">write</span><span class="pun">(</span><span class="pln">test1 </span><span class="pun">+</span><span class="pln"> </span><span class="str">&quot;&lt;br /&gt;&quot;</span><span class="pun">);</span><br /><span class="pln">      document</span><span class="pun">.</span><span class="pln">write</span><span class="pun">(</span><span class="pln">test2 </span><span class="pun">+</span><span class="pln"> </span><span class="str">&quot;&lt;br /&gt;&quot;</span><span class="pun">);</span><br /><span class="pln">      document</span><span class="pun">.</span><span class="pln">write</span><span class="pun">(</span><span class="pln">test3 </span><span class="pun">+</span><span class="pln"> </span><span class="str">&quot;&lt;br /&gt;&quot;</span><span class="pun">);</span><br /><span class="pln">      document</span><span class="pun">.</span><span class="pln">write</span><span class="pun">(</span><span class="pln">test4 </span><span class="pun">+</span><span class="pln"> </span><span class="str">&quot;&lt;br /&gt;&quot;</span><span class="pun">);</span><br /><span class="pln">    </span><span class="tag">&lt;/script&gt;</span><br /><span class="pln">  </span><span class="tag">&lt;/body&gt;</span><br /><span class="tag">&lt;/html&gt;</span></p><p>&nbsp;</p>

http://www.test.com/My test/
http%3A%2F%2Fwww.test.com%2FMy%20test%2F
http://www.test.com/My test/