\u53ef\u89c1\u6027\uff1a
\n\u53ef\u89c1\u6027\u662f\u4e00\u79cd\u590d\u6742\u7684\u5c5e\u6027\uff0c\u56e0\u4e3a\u53ef\u89c1\u6027\u4e2d\u7684\u9519\u8bef\u603b\u662f\u4f1a\u8fdd\u80cc\u6211\u4eec\u7684\u76f4\u89c9\u3002\u901a\u5e38\uff0c\u6211\u4eec\u65e0\u6cd5\u786e\u4fdd\u6267\u884c\u8bfb\u64cd\u4f5c\u7684\u7ebf\u7a0b\u80fd\u9002\u65f6\u5730\u770b\u5230\u5176\u4ed6\u7ebf\u7a0b\u5199\u5165\u7684\u503c\uff0c\u6709\u65f6\u751a\u81f3\u662f\u6839\u672c\u4e0d\u53ef\u80fd\u7684\u4e8b\u60c5\u3002\u4e3a\u4e86\u786e\u4fdd\u591a\u4e2a\u7ebf\u7a0b\u4e4b\u95f4\u5bf9\u5185\u5b58\u5199\u5165\u64cd\u4f5c\u7684\u53ef\u89c1\u6027\uff0c\u5fc5\u987b\u4f7f\u7528\u540c\u6b65\u673a\u5236\u3002
\n\u53ef\u89c1\u6027\uff0c\u662f\u6307\u7ebf\u7a0b\u4e4b\u95f4\u7684\u53ef\u89c1\u6027\uff0c\u4e00\u4e2a\u7ebf\u7a0b\u4fee\u6539\u7684\u72b6\u6001\u5bf9\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u662f\u53ef\u89c1\u7684\u3002
\n\u4e5f\u5c31\u662f\u4e00\u4e2a\u7ebf\u7a0b\u4fee\u6539\u7684\u7ed3\u679c\u3002\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u9a6c\u4e0a\u5c31\u80fd\u770b\u5230\u3002\u6bd4\u5982\uff1a\u7528 volatile\u4fee\u9970\u7684\u53d8\u91cf\uff0c\u5c31\u4f1a\u5177\u6709\u53ef\u89c1\u6027\u3002volatile \u4fee\u9970\u7684\u53d8\u91cf\u4e0d\u5141\u8bb8\u7ebf\u7a0b\u5185\u90e8\u7f13\u5b58\u548c\u91cd\u6392\u5e8f\uff0c\u5373\u76f4\u63a5\u4fee\u6539\u5185\u5b58\u3002\u6240\u4ee5\u5bf9\u5176\u4ed6\u7ebf\u7a0b\u662f\u53ef\u89c1\u7684\u3002\u4f46\u662f\u8fd9\u91cc\u9700\u8981\u6ce8\u610f\u4e00\u4e2a\u95ee\u9898\uff0cvolatile \u53ea\u80fd\u8ba9\u88ab\u4ed6\u4fee\u9970\u5185\u5bb9\u5177\u6709\u53ef\u89c1\u6027\uff0c\u4f46\u4e0d\u80fd\u4fdd\u8bc1\u5b83\u5177\u6709\u539f\u5b50\u6027\u3002\u6bd4\u5982 volatile int a = 0;\u4e4b\u540e\u6709\u4e00\u4e2a\u64cd\u4f5c a++\uff1b\u8fd9\u4e2a\u53d8\u91cf a \u5177\u6709\u53ef\u89c1\u6027\uff0c\u4f46\u662fa++ \u4f9d\u7136\u662f\u4e00\u4e2a\u975e\u539f\u5b50\u64cd\u4f5c\uff0c\u4e5f\u5c31\u662f\u8fd9\u4e2a\u64cd\u4f5c\u540c\u6837\u5b58\u5728\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u3002
\n\u5728 Java \u4e2d volatile\u3001synchronized \u548c final \u5b9e\u73b0\u53ef\u89c1\u6027\u3002
\n\u539f\u5b50\u6027\uff1a
\n\u539f\u4e8e\u662f\u4e16\u754c\u4e0a\u7684\u6700\u5c0f\u5355\u4f4d\uff0c\u5177\u6709\u4e0d\u53ef\u5206\u5272\u6027\u3002\u6bd4\u5982 a=0;\uff08a\u975e long \u548c double\u7c7b\u578b\uff09\u8fd9\u4e2a\u64cd\u4f5c\u662f\u4e0d\u53ef\u5206\u5272\u7684\uff0c\u90a3\u4e48\u6211\u4eec\u8bf4\u8fd9\u4e2a\u64cd\u4f5c\u662f\u539f\u5b50\u64cd\u4f5c\u3002\u518d\u6bd4\u5982:a++;\u8fd9\u4e2a\u64cd\u4f5c\u5b9e\u9645\u662fa =a + 1\uff1a\u662f\u53ef\u5206\u5272\u7684\uff0c\u6240\u4ee5\u4ed6\u4e0d\u662f\u4e00\u4e2a\u539f\u5b50\u64cd\u4f5c\u3002\u975e\u539f\u5b50\u64cd\u4f5c\u90fd\u4f1a\u5b58\u5728\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\uff0c\u9700\u8981\u6211\u4eec\u4f7f\u7528\u540c\u6b65\u6280\u672f\uff08sychronized\uff09\u6765\u8ba9\u5b83\u53d8\u6210\u4e00\u4e2a\u539f\u5b50\u64cd\u4f5c\u3002\u4e00\u4e2a\u64cd\u4f5c\u662f\u539f\u5b50\u64cd\u4f5c\uff0c\u90a3\u4e48\u6211\u4eec\u79f0\u5b83\u5177\u6709\u539f\u5b50\u6027\u3002
\njava\u7684 concurrent\u5305\u4e0b\u63d0\u4f9b\u4e86\u4e00\u4e9b\u539f\u5b50\u7c7b\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u9605\u8bfbAPI \u6765\u4e86\u89e3\u8fd9\u4e9b\u539f\u5b50\u7c7b\u7684\u7528\u6cd5\u3002
\n\u5982:Atomicinteger\u3001AtomicIntegerArry\u3001AtomicFieldUpdater\u3001AtomicLong\u3001AtomicReference\u3001AtomicStampedReference \u7b49\u3002
\n\u5728 Java \u4e2d synchronized \u548c\u5728 lock\u3001unlock \u4e2d\u64cd\u4f5c\u4fdd\u8bc1\u539f\u5b50\u6027\u3002
\n\u6709\u5e8f\u6027\uff1a
\nJava \u8bed\u8a00\u63d0\u4f9b\u4e86 volatile \u548c synchronized \u4e24\u4e2a\u5173\u952e\u5b57\u6765\u4fdd\u8bc1\u7ebf\u7a0b\u4e4b\u95f4\u64cd\u4f5c\u7684\u6709\u5e8f\u6027\uff0cvolatile \u662f\u56e0\u4e3a\u5176\u672c\u8eab\u5305\u542b\u201c\u7981\u6b62\u6307\u4ee4\u91cd\u6392\u5e8f\u201d\u7684\u8bed\u4e49\uff0csynchronized \u662f\u7531"\u4e00\u4e2a\u53d8\u91cf\u5728\u540c\u4e00\u4e2a\u65f6\u523b\u53ea\u5141\u8bb8\u4e00\u6761\u7ebf\u7a0b\u5bf9\u5176\u8fdb\u884clock\u64cd\u4f5c"\u8fd9\u6761\u89c4\u5219\u83b7\u5f97\u7684\uff0c\u6b64\u89c4\u5219\u51b3\u5b9a\u4e86\u6301\u6709\u540c\u4e00\u4e2a\u5bf9\u8c61\u9501\u7684\u4e24\u4e2a\u540c\u6b65\u5757\u53ea\u80fd\u4e32\u884c\u6267\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u53ef\u89c1\u6027\uff1a \u53ef\u89c1\u6027\u662f\u4e00\u79cd\u590d\u6742\u7684\u5c5e\u6027\uff0c\u56e0\u4e3a\u53ef\u89c1\u6027\u4e2d\u7684\u9519\u8bef\u603b\u662f\u4f1a\u8fdd\u80cc\u6211\u4eec\u7684\u76f4\u89c9\u3002\u901a\u5e38\uff0c\u6211\u4eec\u65e0\u6cd5\u786e\u4fdd\u6267\u884c\u8bfb\u64cd\u4f5c\u7684\u7ebf\u7a0b\u80fd […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[99],"tags":[],"class_list":["post-9064","post","type-post","status-publish","format-standard","hentry","category-javabase"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9064","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=9064"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9064\/revisions"}],"predecessor-version":[{"id":9065,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9064\/revisions\/9065"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=9064"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=9064"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=9064"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}