{"id":106,"date":"2017-02-11T10:32:00","date_gmt":"2017-02-11T02:32:00","guid":{"rendered":"https:\/\/cn1.club\/?p=106"},"modified":"2025-03-13T20:14:00","modified_gmt":"2025-03-13T12:14:00","slug":"day2-%e7%ac%94%e8%ae%b0-%e5%ad%97%e7%ac%a6%e5%92%8c%e5%ad%97%e7%ac%a6%e4%b8%b2%e5%8f%82%e4%b8%8e%e8%bf%90%e7%ae%97","status":"publish","type":"post","link":"https:\/\/cn1.club\/?p=106","title":{"rendered":"Day2 \u7b14\u8bb0 \u5b57\u7b26\u548c\u5b57\u7b26\u4e32\u53c2\u4e0e\u8fd0\u7b97"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code class=\"prettyprint\" >class Demo4_DataTypeConversion {\n\tpublic static void main(String&#091;] args) {\n\t\t\/\/System.out.println(&#039;a&#039; + 1);\t\t\t\/\/98,\u56e0\u4e3a\u6709ASCII\u7801\u8868,a\u5b57\u7b26\u5bf9\u5e94\u7684\u662fint\u7c7b\u578b\u768497\n\t\t\/\/System.out.println((char)(&#039;a&#039;+1));\t\t\/\/b\n\n\t\tSystem.out.println(&quot;hello&quot;+&#039;a&#039;+1);\t\t\/\/\u4efb\u4f55\u6570\u636e\u7c7b\u578b\u7528+\u53f7\u4e0e\u5b57\u7b26\u4e32\u76f8\u8fde\u63a5\u90fd\u4f1a\u4ea7\u751f\u65b0\u7684\u5b57\u7b26\u4e32\n\t\tSystem.out.println(&#039;a&#039;+1+&quot;hello&quot;);\n\n\t\tSystem.out.println(&quot;5 + 5 =&quot; + 5 + 5);\/\/5 + 5 = 55\n\t\tSystem.out.println(&quot;5 + 5 =&quot; +( 5 + 5));\/\/5 + 5 = 10\n\n\t}\n}<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>System.out.println('a');\n<ul class=\"wp-block-list\">\n<li>System.out.println('a'+1);<\/li>\n\n\n\n<li>\u901a\u8fc7\u770b\u7ed3\u679c\u77e5\u9053'a'\u7684\u503c\u662f\u591a\u5c11,\u7531\u6b64\u5f15\u51faASCII\u7801\u8868<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>B:ASCII\u7801\u8868\u7684\u6982\u8ff0\n<ul class=\"wp-block-list\">\n<li>\u8bb0\u4f4f\u4e09\u4e2a\u503c\uff1a\n<ul class=\"wp-block-list\">\n<li>'0' 48<\/li>\n\n\n\n<li>'A' 65<\/li>\n\n\n\n<li>'a' 97<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>C:\u6848\u4f8b\u6f14\u793a\n<ul class=\"wp-block-list\">\n<li>System.out.println(\"hello\"+'a'+1);<\/li>\n\n\n\n<li>System.out.println('a'+1+\"hello\");<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>D:+\u5728\u6709\u5b57\u7b26\u4e32\u53c2\u4e0e\u4e2d\u88ab\u79f0\u4e3a\u5b57\u7b26\u4e32\u8fde\u63a5\u7b26\n<ul class=\"wp-block-list\">\n<li>System.out.println(\"5+5=\"+5+5);<\/li>\n\n\n\n<li>System.out.println(5+5+\"=5+5\");<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":196,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[],"class_list":["post-106","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-xuexi"],"_links":{"self":[{"href":"https:\/\/cn1.club\/index.php?rest_route=\/wp\/v2\/posts\/106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn1.club\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn1.club\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn1.club\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn1.club\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=106"}],"version-history":[{"count":0,"href":"https:\/\/cn1.club\/index.php?rest_route=\/wp\/v2\/posts\/106\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn1.club\/index.php?rest_route=\/wp\/v2\/media\/196"}],"wp:attachment":[{"href":"https:\/\/cn1.club\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn1.club\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn1.club\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}