NPE\u7535\u5bb9\u7684D\u503c\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5b83\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7535\u5b50\u884c\u4e1a\u3002\u6bd4\u5982\uff0c\u5b83\u53ef\u4ee5\u7528\u6765\u8861\u91cf\u7535\u5bb9\u5668\u7684\u6027\u80fd\uff0c\u4e5f\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u597d\u5730\u7406\u89e3\u7535\u5bb9\u5668\u7684\u5de5\u4f5c\u539f\u7406\u3002\u672c\u6587\u5c06\u4e3a\u60a8\u63d0\u4f9b\u4e00\u4e2a\u7b80\u5355\u7684\u6982\u8ff0\uff0c\u4ecb\u7ecd\u4ec0\u4e48\u662fNPE\u7535\u5bb9\u7684D\u503c\uff0c\u4ee5\u53ca\u5b83\u662f\u5982\u4f55\u88ab\u5e94\u7528\u7684\u3002<\/p>\n
NPE\u7535\u5bb9\u7684D\u503c\u662f\u4e00\u4e2a\u91cf\u5316\u6307\u6807\uff0c\u7528\u6765\u8861\u91cf\u7535\u5bb9\u5668\u7684\u6027\u80fd\u3002\u5b83\u662f\u7531\u7535\u5bb9\u5668\u7684\u7535\u5bb9\u91cfC\u548c\u7535\u5bb9\u5668\u7684\u7535\u963bR\u4e4b\u95f4\u7684\u6bd4\u503c\u6765\u8861\u91cf\u7684\uff0c\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n
D = C\/R<\/p>\n
\u7531\u4e8e\u7535\u5bb9\u5668\u7684\u7535\u5bb9\u91cf\u548c\u7535\u963b\u4e4b\u95f4\u7684\u6bd4\u503c\u8d8a\u5927\uff0c\u8868\u793a\u7535\u5bb9\u5668\u7684\u6027\u80fd\u8d8a\u597d\uff0c\u56e0\u6b64\uff0cD\u503c\u8d8a\u5927\uff0c\u8868\u793a\u7535\u5bb9\u5668\u7684\u6027\u80fd\u8d8a\u597d\u3002<\/p>\n
NPE\u7535\u5bb9\u7684D\u503c\u53ef\u4ee5\u7528\u6765\u8861\u91cf\u7535\u5bb9\u5668\u5728\u7535\u8def\u8bbe\u8ba1\u4e2d\u7684\u6027\u80fd\u3002\u7531\u4e8eD\u503c\u8d8a\u5927\uff0c\u8868\u793a\u7535\u5bb9\u5668\u7684\u6027\u80fd\u8d8a\u597d\uff0c\u56e0\u6b64\uff0c\u5728\u7535\u8def\u8bbe\u8ba1\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u9009\u62e9D\u503c\u8f83\u5927\u7684\u7535\u5bb9\u5668\uff0c\u4ee5\u786e\u4fdd\u7535\u8def\u7684\u6027\u80fd\u8f83\u9ad8\u3002<\/p>\n
NPE\u7535\u5bb9\u7684D\u503c\u4e5f\u53ef\u4ee5\u7528\u6765\u6d4b\u8bd5\u7535\u5bb9\u5668\u7684\u6027\u80fd\u3002\u901a\u8fc7\u6d4b\u91cf\u7535\u5bb9\u5668\u7684\u7535\u5bb9\u91cfC\u548c\u7535\u963bR\uff0c\u53ef\u4ee5\u8ba1\u7b97\u51fa\u7535\u5bb9\u5668\u7684D\u503c\uff0c\u4ece\u800c\u68c0\u9a8c\u7535\u5bb9\u5668\u7684\u6027\u80fd\u662f\u5426\u7b26\u5408\u8981\u6c42\u3002<\/p>\n
NPE\u7535\u5bb9\u7684D\u503c\u4e5f\u53ef\u4ee5\u7528\u6765\u8bc4\u4f30\u7535\u5bb9\u5668\u7684\u6027\u80fd\u3002\u7531\u4e8eD\u503c\u8d8a\u5927\uff0c\u8868\u793a\u7535\u5bb9\u5668\u7684\u6027\u80fd\u8d8a\u597d\uff0c\u56e0\u6b64\uff0c\u5728\u8bc4\u4f30\u7535\u5bb9\u5668\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u6bd4\u8f83\u7535\u5bb9\u5668\u7684D\u503c\uff0c\u4ee5\u786e\u5b9a\u54ea\u79cd\u7535\u5bb9\u5668\u6027\u80fd\u6700\u597d\u3002<\/p>\n
NPE\u7535\u5bb9\u7684D\u503c\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5b83\u53ef\u4ee5\u7528\u6765\u8861\u91cf\u7535\u5bb9\u5668\u7684\u6027\u80fd\uff0c\u4e5f\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u597d\u5730\u7406\u89e3\u7535\u5bb9\u5668\u7684\u5de5\u4f5c\u539f\u7406\u3002<\/strong>\u5b83\u53ef\u4ee5\u7528\u4e8e\u7535\u8def\u8bbe\u8ba1\u3001\u7535\u5bb9\u5668\u6d4b\u8bd5\u548c\u7535\u5bb9\u5668\u8bc4\u4f30\uff0c\u4ee5\u786e\u4fdd\u7535\u8def\u7684\u6027\u80fd\u548c\u7535\u5bb9\u5668\u7684\u6027\u80fd\u6ee1\u8db3\u8981\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" NPE\u7535\u5bb9\u7684D\u503c\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5b83\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7535\u5b50\u884c\u4e1a\u3002\u6bd4\u5982\uff0c\u5b83\u53ef\u4ee5\u7528\u6765\u8861\u91cf\u7535\u5bb9\u5668\u7684\u6027\u80fd\uff0c\u4e5f\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u597d\u5730\u7406\u89e3\u7535\u5bb9\u5668\u7684\u5de5\u4f5c\u539f\u7406\u3002\u672c\u6587\u5c06\u4e3a\u60a8\u63d0\u4f9b\u4e00\u4e2a\u7b80\u5355\u7684\u6982\u8ff0\uff0c\u4ecb\u7ecd\u4ec0<\/p>\n","protected":false},"author":1,"featured_media":1839,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[36],"tags":[305],"class_list":["post-62389","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-dzjs"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/62389","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/comments?post=62389"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/62389\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/1839"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=62389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=62389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=62389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}