{"id":2193,"date":"2025-03-01T18:29:26","date_gmt":"2025-03-01T10:29:26","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=2193"},"modified":"2025-03-01T18:29:26","modified_gmt":"2025-03-01T10:29:26","slug":"java-%e8%bf%90%e7%ae%97%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/01\/java-%e8%bf%90%e7%ae%97%e7%ac%a6\/","title":{"rendered":"Java \u8fd0\u7b97\u7b26"},"content":{"rendered":"\n<p>\u5728 Java \u4e2d\uff0c<strong>\u8fd0\u7b97\u7b26<\/strong>\u7528\u4e8e\u6267\u884c\u5404\u79cd\u64cd\u4f5c\uff0c\u5982\u6570\u5b66\u8ba1\u7b97\u3001\u903b\u8f91\u5224\u65ad\u548c\u4f4d\u64cd\u4f5c\u7b49\u3002Java \u63d0\u4f9b\u4e86\u591a\u79cd\u7c7b\u578b\u7684\u8fd0\u7b97\u7b26\uff0c\u4ee5\u4e0b\u662f Java \u4e2d\u5e38\u7528\u7684\u8fd0\u7b97\u7b26\u7c7b\u578b\u548c\u5b83\u4eec\u7684\u4f7f\u7528\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. <strong>\u7b97\u672f\u8fd0\u7b97\u7b26\uff08Arithmetic Operators\uff09<\/strong><\/h3>\n\n\n\n<p>\u7b97\u672f\u8fd0\u7b97\u7b26\u7528\u4e8e\u6267\u884c\u57fa\u672c\u7684\u6570\u5b66\u8fd0\u7b97\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>+<\/code><\/strong>\uff1a\u52a0\u6cd5\u8fd0\u7b97\u7b26\uff0c\u7528\u4e8e\u6c42\u548c\u3002<\/li>\n\n\n\n<li><strong><code>-<\/code><\/strong>\uff1a\u51cf\u6cd5\u8fd0\u7b97\u7b26\uff0c\u7528\u4e8e\u76f8\u51cf\u3002<\/li>\n\n\n\n<li><strong><code>*<\/code><\/strong>\uff1a\u4e58\u6cd5\u8fd0\u7b97\u7b26\uff0c\u7528\u4e8e\u76f8\u4e58\u3002<\/li>\n\n\n\n<li><strong><code>\/<\/code><\/strong>\uff1a\u9664\u6cd5\u8fd0\u7b97\u7b26\uff0c\u7528\u4e8e\u76f8\u9664\u3002<\/li>\n\n\n\n<li><strong><code>%<\/code><\/strong>\uff1a\u53d6\u4f59\u8fd0\u7b97\u7b26\uff0c\u7528\u4e8e\u6c42\u4f59\u6570\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>int a = 10, b = 3;\nSystem.out.println(a + b);  \/\/ 13\nSystem.out.println(a - b);  \/\/ 7\nSystem.out.println(a * b);  \/\/ 30\nSystem.out.println(a \/ b);  \/\/ 3 (\u6574\u6570\u76f8\u9664\u7ed3\u679c\u4e3a\u6574\u6570)\nSystem.out.println(a % b);  \/\/ 1 (\u4f59\u6570)<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2. <strong>\u5173\u7cfb\u8fd0\u7b97\u7b26\uff08Relational Operators\uff09<\/strong><\/h3>\n\n\n\n<p>\u5173\u7cfb\u8fd0\u7b97\u7b26\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u503c\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\uff08<code>true<\/code> \u6216 <code>false<\/code>\uff09\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>==<\/code><\/strong>\uff1a\u7b49\u4e8e\u8fd0\u7b97\u7b26\uff0c\u5224\u65ad\u4e24\u4e2a\u503c\u662f\u5426\u76f8\u7b49\u3002<\/li>\n\n\n\n<li><strong><code>!=<\/code><\/strong>\uff1a\u4e0d\u7b49\u4e8e\u8fd0\u7b97\u7b26\uff0c\u5224\u65ad\u4e24\u4e2a\u503c\u662f\u5426\u4e0d\u76f8\u7b49\u3002<\/li>\n\n\n\n<li><strong><code>><\/code><\/strong>\uff1a\u5927\u4e8e\u8fd0\u7b97\u7b26\uff0c\u5224\u65ad\u5de6\u4fa7\u7684\u503c\u662f\u5426\u5927\u4e8e\u53f3\u4fa7\u7684\u503c\u3002<\/li>\n\n\n\n<li><strong><code>&lt;<\/code><\/strong>\uff1a\u5c0f\u4e8e\u8fd0\u7b97\u7b26\uff0c\u5224\u65ad\u5de6\u4fa7\u7684\u503c\u662f\u5426\u5c0f\u4e8e\u53f3\u4fa7\u7684\u503c\u3002<\/li>\n\n\n\n<li><strong><code>>=<\/code><\/strong>\uff1a\u5927\u4e8e\u6216\u7b49\u4e8e\u8fd0\u7b97\u7b26\uff0c\u5224\u65ad\u5de6\u4fa7\u7684\u503c\u662f\u5426\u5927\u4e8e\u6216\u7b49\u4e8e\u53f3\u4fa7\u7684\u503c\u3002<\/li>\n\n\n\n<li><strong><code>&lt;=<\/code><\/strong>\uff1a\u5c0f\u4e8e\u6216\u7b49\u4e8e\u8fd0\u7b97\u7b26\uff0c\u5224\u65ad\u5de6\u4fa7\u7684\u503c\u662f\u5426\u5c0f\u4e8e\u6216\u7b49\u4e8e\u53f3\u4fa7\u7684\u503c\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>int a = 10, b = 5;\nSystem.out.println(a == b);  \/\/ false\nSystem.out.println(a != b);  \/\/ true\nSystem.out.println(a &gt; b);   \/\/ true\nSystem.out.println(a &lt; b);   \/\/ false\nSystem.out.println(a &gt;= b);  \/\/ true\nSystem.out.println(a &lt;= b);  \/\/ false<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">3. <strong>\u903b\u8f91\u8fd0\u7b97\u7b26\uff08Logical Operators\uff09<\/strong><\/h3>\n\n\n\n<p>\u903b\u8f91\u8fd0\u7b97\u7b26\u7528\u4e8e\u5bf9\u5e03\u5c14\u503c\u8fdb\u884c\u8fd0\u7b97\uff0c\u5e38\u7528\u4e8e\u63a7\u5236\u6d41\u4e2d\u7684\u6761\u4ef6\u5224\u65ad\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>&amp;&amp;<\/code><\/strong>\uff1a\u4e0e\u8fd0\u7b97\u7b26\uff0c\u53ea\u6709\u5f53\u4e24\u4e2a\u6761\u4ef6\u90fd\u4e3a <code>true<\/code> \u65f6\uff0c\u7ed3\u679c\u624d\u4e3a <code>true<\/code>\u3002<\/li>\n\n\n\n<li><strong><code>||<\/code><\/strong>\uff1a\u6216\u8fd0\u7b97\u7b26\uff0c\u53ea\u6709\u5f53\u4e24\u4e2a\u6761\u4ef6\u90fd\u4e3a <code>false<\/code> \u65f6\uff0c\u7ed3\u679c\u624d\u4e3a <code>false<\/code>\u3002<\/li>\n\n\n\n<li><strong><code>!<\/code><\/strong>\uff1a\u975e\u8fd0\u7b97\u7b26\uff0c\u7528\u4e8e\u53d6\u53cd\uff0c<code>true<\/code> \u53d8\u4e3a <code>false<\/code>\uff0c<code>false<\/code> \u53d8\u4e3a <code>true<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>boolean x = true, y = false;\nSystem.out.println(x &amp;&amp; y);  \/\/ false\nSystem.out.println(x || y);  \/\/ true\nSystem.out.println(!x);      \/\/ false<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">4. <strong>\u8d4b\u503c\u8fd0\u7b97\u7b26\uff08Assignment Operators\uff09<\/strong><\/h3>\n\n\n\n<p>\u8d4b\u503c\u8fd0\u7b97\u7b26\u7528\u4e8e\u5c06\u503c\u8d4b\u7ed9\u53d8\u91cf\u3002\u5e38\u89c1\u7684\u8d4b\u503c\u8fd0\u7b97\u7b26\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>=<\/code><\/strong>\uff1a\u8d4b\u503c\u8fd0\u7b97\u7b26\uff0c\u5c06\u53f3\u4fa7\u7684\u503c\u8d4b\u7ed9\u5de6\u4fa7\u7684\u53d8\u91cf\u3002<\/li>\n\n\n\n<li><strong><code>+=<\/code><\/strong>\uff1a\u52a0\u6cd5\u8d4b\u503c\u8fd0\u7b97\u7b26\uff0c\u5c06\u53f3\u4fa7\u7684\u503c\u52a0\u5230\u5de6\u4fa7\u53d8\u91cf\u4e0a\u3002<\/li>\n\n\n\n<li><strong><code>-=<\/code><\/strong>\uff1a\u51cf\u6cd5\u8d4b\u503c\u8fd0\u7b97\u7b26\uff0c\u5c06\u53f3\u4fa7\u7684\u503c\u4ece\u5de6\u4fa7\u53d8\u91cf\u4e2d\u51cf\u53bb\u3002<\/li>\n\n\n\n<li><strong><code>*=<\/code><\/strong>\uff1a\u4e58\u6cd5\u8d4b\u503c\u8fd0\u7b97\u7b26\uff0c\u5c06\u53f3\u4fa7\u7684\u503c\u4e58\u5230\u5de6\u4fa7\u53d8\u91cf\u4e0a\u3002<\/li>\n\n\n\n<li><strong><code>\/=<\/code><\/strong>\uff1a\u9664\u6cd5\u8d4b\u503c\u8fd0\u7b97\u7b26\uff0c\u5c06\u5de6\u4fa7\u53d8\u91cf\u9664\u4ee5\u53f3\u4fa7\u7684\u503c\u3002<\/li>\n\n\n\n<li><strong><code>%=<\/code><\/strong>\uff1a\u53d6\u4f59\u8d4b\u503c\u8fd0\u7b97\u7b26\uff0c\u5c06\u5de6\u4fa7\u53d8\u91cf\u9664\u4ee5\u53f3\u4fa7\u503c\u540e\u7684\u4f59\u6570\u8d4b\u7ed9\u5de6\u4fa7\u53d8\u91cf\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>int a = 10;\na += 5;  \/\/ a = a + 5, a \u7684\u65b0\u503c\u4e3a 15\na -= 3;  \/\/ a = a - 3, a \u7684\u65b0\u503c\u4e3a 12\na *= 2;  \/\/ a = a * 2, a \u7684\u65b0\u503c\u4e3a 24\na \/= 4;  \/\/ a = a \/ 4, a \u7684\u65b0\u503c\u4e3a 6\na %= 3;  \/\/ a = a % 3, a \u7684\u65b0\u503c\u4e3a 0<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">5. <strong>\u4f4d\u8fd0\u7b97\u7b26\uff08Bitwise Operators\uff09<\/strong><\/h3>\n\n\n\n<p>\u4f4d\u8fd0\u7b97\u7b26\u7528\u4e8e\u5bf9\u6574\u6570\u7c7b\u578b\uff08<code>int<\/code>\u3001<code>long<\/code> \u7b49\uff09\u7684\u4e8c\u8fdb\u5236\u4f4d\u8fdb\u884c\u64cd\u4f5c\u3002\u5e38\u89c1\u7684\u4f4d\u8fd0\u7b97\u7b26\u6709\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>&amp;<\/code><\/strong>\uff1a\u6309\u4f4d\u4e0e\u8fd0\u7b97\u7b26\uff0c\u53ea\u6709\u4e24\u4e2a\u76f8\u5e94\u7684\u4f4d\u90fd\u4e3a <code>1<\/code> \u65f6\uff0c\u7ed3\u679c\u624d\u4e3a <code>1<\/code>\u3002<\/li>\n\n\n\n<li><strong><code>|<\/code><\/strong>\uff1a\u6309\u4f4d\u6216\u8fd0\u7b97\u7b26\uff0c\u53ea\u6709\u4e24\u4e2a\u76f8\u5e94\u7684\u4f4d\u90fd\u4e3a <code>0<\/code> \u65f6\uff0c\u7ed3\u679c\u624d\u4e3a <code>0<\/code>\u3002<\/li>\n\n\n\n<li><strong><code>^<\/code><\/strong>\uff1a\u6309\u4f4d\u5f02\u6216\u8fd0\u7b97\u7b26\uff0c\u4e24\u4e2a\u76f8\u5e94\u7684\u4f4d\u4e0d\u540c\u5219\u7ed3\u679c\u4e3a <code>1<\/code>\u3002<\/li>\n\n\n\n<li><strong><code>~<\/code><\/strong>\uff1a\u6309\u4f4d\u53d6\u53cd\u8fd0\u7b97\u7b26\uff0c\u53cd\u8f6c\u64cd\u4f5c\u6570\u7684\u6bcf\u4e00\u4f4d\u3002<\/li>\n\n\n\n<li><strong><code>&lt;&lt;<\/code><\/strong>\uff1a\u5de6\u79fb\u8fd0\u7b97\u7b26\uff0c\u5c06\u64cd\u4f5c\u6570\u7684\u4f4d\u5411\u5de6\u79fb\u52a8\u6307\u5b9a\u7684\u4f4d\u6570\u3002<\/li>\n\n\n\n<li><strong><code>>><\/code><\/strong>\uff1a\u53f3\u79fb\u8fd0\u7b97\u7b26\uff0c\u5c06\u64cd\u4f5c\u6570\u7684\u4f4d\u5411\u53f3\u79fb\u52a8\u6307\u5b9a\u7684\u4f4d\u6570\u3002<\/li>\n\n\n\n<li><strong><code>>>><\/code><\/strong>\uff1a\u65e0\u7b26\u53f7\u53f3\u79fb\u8fd0\u7b97\u7b26\uff0c\u5c06\u64cd\u4f5c\u6570\u7684\u4f4d\u5411\u53f3\u79fb\u52a8\u6307\u5b9a\u7684\u4f4d\u6570\uff0c\u4e0d\u7ba1\u7b26\u53f7\u4f4d\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>int a = 5;  \/\/ \u4e8c\u8fdb\u5236\uff1a101\nint b = 3;  \/\/ \u4e8c\u8fdb\u5236\uff1a011\nSystem.out.println(a &amp; b);  \/\/ 1 (\u4e8c\u8fdb\u5236\uff1a001)\nSystem.out.println(a | b);  \/\/ 7 (\u4e8c\u8fdb\u5236\uff1a111)\nSystem.out.println(a ^ b);  \/\/ 6 (\u4e8c\u8fdb\u5236\uff1a110)\nSystem.out.println(~a);     \/\/ -6 (\u4e8c\u8fdb\u5236\uff1a...11111010)\nSystem.out.println(a &lt;&lt; 1); \/\/ 10 (\u4e8c\u8fdb\u5236\uff1a1010)\nSystem.out.println(a &gt;&gt; 1); \/\/ 2  (\u4e8c\u8fdb\u5236\uff1a10)<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">6. <strong>\u4e09\u5143\u8fd0\u7b97\u7b26\uff08Ternary Operator\uff09<\/strong><\/h3>\n\n\n\n<p>\u4e09\u5143\u8fd0\u7b97\u7b26\u662f Java \u4e2d\u552f\u4e00\u7684\u4e09\u5143\u8fd0\u7b97\u7b26\uff0c\u5b83\u901a\u8fc7\u5224\u65ad\u6761\u4ef6\u6765\u8fd4\u56de\u4e0d\u540c\u7684\u7ed3\u679c\uff0c\u901a\u5e38\u7528\u4e8e\u7b80\u5316 <code>if-else<\/code> \u8bed\u53e5\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>condition ? expression1 : expression2<\/code><\/strong>\uff1a\u5982\u679c <code>condition<\/code> \u4e3a <code>true<\/code>\uff0c\u5219\u8fd4\u56de <code>expression1<\/code>\uff0c\u5426\u5219\u8fd4\u56de <code>expression2<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>int a = 5, b = 10;\nint max = (a &gt; b) ? a : b;  \/\/ \u5982\u679c a &gt; b\uff0cmax \u4e3a a\uff0c\u5426\u5219\u4e3a b\nSystem.out.println(max);  \/\/ 10<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">7. <strong>\u7c7b\u578b\u8f6c\u6362\u8fd0\u7b97\u7b26\uff08Type Cast Operator\uff09<\/strong><\/h3>\n\n\n\n<p>\u7c7b\u578b\u8f6c\u6362\u8fd0\u7b97\u7b26\u7528\u4e8e\u5c06\u4e00\u79cd\u6570\u636e\u7c7b\u578b\u7684\u503c\u8f6c\u6362\u4e3a\u53e6\u4e00\u79cd\u6570\u636e\u7c7b\u578b\u3002\u53ef\u4ee5\u662f<strong>\u9690\u5f0f\u8f6c\u6362<\/strong>\uff08\u81ea\u52a8\u8f6c\u6362\uff09\u6216<strong>\u663e\u5f0f\u8f6c\u6362<\/strong>\uff08\u5f3a\u5236\u8f6c\u6362\uff09\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u9690\u5f0f\u8f6c\u6362<\/strong>\uff1a\u7531 Java \u81ea\u52a8\u8fdb\u884c\uff0c\u901a\u5e38\u53d1\u751f\u5728\u8f83\u5c0f\u7684\u6570\u636e\u7c7b\u578b\u8f6c\u6362\u4e3a\u8f83\u5927\u7684\u6570\u636e\u7c7b\u578b\u65f6\u3002<\/li>\n\n\n\n<li><strong>\u663e\u5f0f\u8f6c\u6362<\/strong>\uff1a\u901a\u8fc7\u5f3a\u5236\u8f6c\u6362\uff0c\u624b\u52a8\u8f6c\u6362\u4e3a\u76ee\u6807\u7c7b\u578b\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>int a = 10;\ndouble b = a;  \/\/ \u9690\u5f0f\u8f6c\u6362\uff1a\u4ece int \u5230 double\n\ndouble c = 9.8;\nint d = (int) c;  \/\/ \u663e\u5f0f\u8f6c\u6362\uff1a\u4ece double \u5230 int\uff0c\u7ed3\u679c\u4e3a 9<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">8. ** instanceof \u8fd0\u7b97\u7b26**<\/h3>\n\n\n\n<p><code>instanceof<\/code> \u8fd0\u7b97\u7b26\u7528\u4e8e\u5224\u65ad\u4e00\u4e2a\u5bf9\u8c61\u662f\u5426\u662f\u67d0\u4e2a\u7c7b\u6216\u63a5\u53e3\u7684\u5b9e\u4f8b\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>object instanceof ClassName<\/code><\/strong>\uff1a\u5982\u679c\u5bf9\u8c61\u662f\u6307\u5b9a\u7c7b\u6216\u63a5\u53e3\u7684\u5b9e\u4f8b\uff0c\u8fd4\u56de <code>true<\/code>\uff1b\u5426\u5219\u8fd4\u56de <code>false<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>String str = \"Hello\";\nSystem.out.println(str instanceof String);  \/\/ true\nSystem.out.println(str instanceof Object);  \/\/ true<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<p>Java \u4e2d\u6709\u591a\u79cd\u8fd0\u7b97\u7b26\u7528\u4e8e\u6267\u884c\u5404\u79cd\u64cd\u4f5c\uff0c\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7b97\u672f\u8fd0\u7b97\u7b26<\/strong>\uff1a\u7528\u4e8e\u57fa\u672c\u7684\u6570\u5b66\u8ba1\u7b97\u3002<\/li>\n\n\n\n<li><strong>\u5173\u7cfb\u8fd0\u7b97\u7b26<\/strong>\uff1a\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u503c\u7684\u5173\u7cfb\u3002<\/li>\n\n\n\n<li><strong>\u903b\u8f91\u8fd0\u7b97\u7b26<\/strong>\uff1a\u7528\u4e8e\u5e03\u5c14\u503c\u4e4b\u95f4\u7684\u8fd0\u7b97\u3002<\/li>\n\n\n\n<li><strong>\u8d4b\u503c\u8fd0\u7b97\u7b26<\/strong>\uff1a\u7528\u4e8e\u7ed9\u53d8\u91cf\u8d4b\u503c\u3002<\/li>\n\n\n\n<li><strong>\u4f4d\u8fd0\u7b97\u7b26<\/strong>\uff1a\u7528\u4e8e\u5bf9\u4e8c\u8fdb\u5236\u4f4d\u8fdb\u884c\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li><strong>\u4e09\u5143\u8fd0\u7b97\u7b26<\/strong>\uff1a\u901a\u8fc7\u6761\u4ef6\u8868\u8fbe\u5f0f\u9009\u62e9\u503c\u3002<\/li>\n\n\n\n<li><strong>\u7c7b\u578b\u8f6c\u6362\u8fd0\u7b97\u7b26<\/strong>\uff1a\u7528\u4e8e\u6570\u636e\u7c7b\u578b\u7684\u8f6c\u6362\u3002<\/li>\n\n\n\n<li><strong><code>instanceof<\/code> \u8fd0\u7b97\u7b26<\/strong>\uff1a\u5224\u65ad\u5bf9\u8c61\u662f\u5426\u662f\u67d0\u7c7b\u7684\u5b9e\u4f8b\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u4e9b\u8fd0\u7b97\u7b26\u5e2e\u52a9\u5f00\u53d1\u8005\u5b8c\u6210\u5404\u79cd\u8ba1\u7b97\u548c\u5224\u65ad\u64cd\u4f5c\uff0c\u662f Java \u7f16\u7a0b\u4e2d\u975e\u5e38\u91cd\u8981\u7684\u7ec4\u6210\u90e8\u5206\u3002\u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Java \u4e2d\uff0c\u8fd0\u7b97\u7b26\u7528\u4e8e\u6267\u884c\u5404\u79cd\u64cd\u4f5c\uff0c\u5982\u6570\u5b66\u8ba1\u7b97\u3001\u903b\u8f91\u5224\u65ad\u548c\u4f4d\u64cd\u4f5c\u7b49\u3002Java \u63d0\u4f9b\u4e86\u591a\u79cd\u7c7b\u578b\u7684\u8fd0\u7b97\u7b26\uff0c\u4ee5 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[68],"tags":[],"class_list":["post-2193","post","type-post","status-publish","format-standard","hentry","category-java"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2193","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=2193"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2193\/revisions"}],"predecessor-version":[{"id":2194,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2193\/revisions\/2194"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=2193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=2193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=2193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}