{"id":404,"date":"2023-09-11T00:12:15","date_gmt":"2023-09-10T16:12:15","guid":{"rendered":"https:\/\/9iwd.top\/?p=404"},"modified":"2023-09-11T00:24:33","modified_gmt":"2023-09-10T16:24:33","slug":"10-5-%e5%86%85%e5%ad%98%e5%9b%9b%e5%8c%ba-new%e8%bf%90%e7%ae%97%e7%ac%a6","status":"publish","type":"post","link":"http:\/\/9iwd.top\/?p=404","title":{"rendered":"10.5 \u5185\u5b58\u56db\u533a-new\u8fd0\u7b97\u7b26"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>#include &lt;iostream>\t \/\/ \u8f93\u51fa\u6d41\u5e93\r\nusing namespace std; \/\/ \u4f7f\u7528\u6807\u51c6\u547d\u540d\u7a7a\u95f4\r\n\r\n\/\/ \u8bfe\u7a0b\uff1anew\u521b\u5efa\u8bed\u6cd5\u3001delete\u91ca\u653e\r\n\r\n\/\/ 1\u3001new\u57fa\u7840\u8bed\u6cd5\r\nint *func()\r\n{\r\n\t\/\/ \u5728\u5806\u533a\u521b\u5efa\u6574\u5f62\u6570\u636e\r\n\t\/\/ new\u8fd4\u56de\u662f \u8be5\u6570\u636e\u7c7b\u578b\u7684\u6307\u9488\uff0c\u4f7f\u7528\u5bf9\u5e94\u6307\u9488\u63a5\u6536\r\n\tint *p = new int(10);\r\n\treturn p;\r\n}\r\n\r\n\/\/ \u6253\u5370\u8f93\u51fanew\u521b\u5efa\u5806\u533a\u6570\u636e\r\nvoid test01()\r\n{\r\n\tint *p = func();\r\n\t\/\/ \u5f53\u524d\u5806\u533a\u6307\u9488\u4e0d\u91ca\u653e\u4e00\u76f4\u5b58\u5728\r\n\tcout &lt;&lt; *p &lt;&lt; endl;\r\n\tcout &lt;&lt; *p &lt;&lt; endl;\r\n\tcout &lt;&lt; *p &lt;&lt; endl;\r\n\t\/\/ \u4f7f\u7528\u5173\u952e\u8bcd delete \u6765\u91ca\u653e\u6307\u9488\u5806\u533a\u7684\u6570\u636e\r\n\tdelete p;\r\n\tcout &lt;&lt; *p &lt;&lt; endl; \/\/ \u5806\u533a\u6307\u9488\u6570\u636e\u91ca\u653e\u4e4b\u540e\u6307\u5411\u672a\u77e5\u4f4d\u7f6e\u62a5\u9519\r\n}\r\n\r\n\/\/ 2\u3001\u5728\u5806\u533a\u5229\u7528new\u521b\u5efa\u6570\u7ec4\r\nvoid test02()\r\n{\r\n\t\/\/ \u5728\u5806\u533a\uff0c\u521b\u5efa10\u4e2a\u6574\u5f62\u6570\u636e\u7684\u6570\u7ec4\r\n\tint *arr = new int&#91;10]; \/\/ \u533a\u5206\u62ec\u53f7\u7684\u5e94\u7528\uff0c()\u662f\u8d4b\u503c\uff0c&#91;]\u662f\u6709\u5bf9\u5e94\u4e2a\u5143\u7d20\r\n\tfor (int i = 0; i &lt; 10; i++)\r\n\t{\r\n\t\tarr&#91;i] = i + 100; \/\/ \u7ed910\u4e2a\u5143\u7d20\u8d4b\u503c100 ~ 109\r\n\t}\r\n\r\n\tcout &lt;&lt; \"------ \u6253\u5370new\u6570\u7ec4 ------\" &lt;&lt; endl;\r\n\tfor (int i = 0; i &lt; 10; i++)\r\n\t{\r\n\t\tcout &lt;&lt; arr&#91;i] &lt;&lt; endl;\r\n\t}\r\n\r\n\t\/\/ \u91ca\u653e\u5806\u533a\u6570\u7ec4\r\n\t\/\/ \u91ca\u653e\u6570\u7ec4\u7684\u65f6\u5019\uff0c\u8981\u52a0\u4e0a&#91;]\u544a\u77e5\u7cfb\u7edf\u662f\u6570\u7ec4\u624d\u53ef\u4ee5\r\n\tdelete&#91;] arr;\r\n}\r\n\/\/ \u7a0b\u5e8f\u5165\u53e3\u51fd\u6570\r\nint main()\r\n{\r\n\tsystem(\"chcp 65001\"); \/\/ \u4e34\u65f6\u8bbe\u7f6eUTF-8\u7f16\u7801\r\n\t\/\/ test01();\r\n\ttest02();\r\n\r\n\tsystem(\"pause\"); \/\/ \u63a7\u5236\u53f0\u6682\u505c\uff0c\u7b49\u5f85\u4e0b\u4e00\u6b65\u64cd\u4f5c\r\n\treturn 0;\t\t \/\/ \u7ed3\u675f\u8fd4\u56de\u503c\uff1a0\r\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"_links":{"self":[{"href":"http:\/\/9iwd.top\/index.php?rest_route=\/wp\/v2\/posts\/404"}],"collection":[{"href":"http:\/\/9iwd.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/9iwd.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/9iwd.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/9iwd.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=404"}],"version-history":[{"count":3,"href":"http:\/\/9iwd.top\/index.php?rest_route=\/wp\/v2\/posts\/404\/revisions"}],"predecessor-version":[{"id":408,"href":"http:\/\/9iwd.top\/index.php?rest_route=\/wp\/v2\/posts\/404\/revisions\/408"}],"wp:attachment":[{"href":"http:\/\/9iwd.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/9iwd.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=404"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/9iwd.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}