{"id":2660,"date":"2023-11-14T14:26:31","date_gmt":"2023-11-14T06:26:31","guid":{"rendered":""},"modified":"2023-11-14T14:26:31","modified_gmt":"2023-11-14T06:26:31","slug":"JavaScript\u8fd0\u7b97\u7b26","status":"publish","type":"post","link":"https:\/\/bianchenghao6.com\/2660.html","title":{"rendered":"JavaScript\u8fd0\u7b97\u7b26"},"content":{"rendered":"
\n

JavaScript\u8fd0\u7b97\u7b26<\/h1>\n<\/div>\n
\n JavaScript\u8fd0\u7b97\u7b26\u662f\u7528\u4e8e\u5bf9\u64cd\u4f5c\u6570\u6267\u884c\u64cd\u4f5c\u7684\u7b26\u53f7\u3002\u4f8b\u5982\uff1a\n<\/div>\n
\n
 var sum = 10 + 20;
 <\/span><\/code><\/pre>\n<\/div>\n
\n  \u5728\u8fd9\u91cc\uff0c+\u662f\u7b97\u672f\u8fd0\u7b97\u7b26\uff0c=\u662f\u8d4b\u503c\u8fd0\u7b97\u7b26\u3002\n<\/div>\n
\n  JavaScript\u4e2d\u6709\u4ee5\u4e0b\u51e0\u79cd\u8fd0\u7b97\u7b26\u3002\n<\/div>\n
\u7b97\u672f\u8fd0\u7b97\u7b26<\/span>
\n\u6bd4\u8f83(\u5173\u7cfb)\u8fd0\u7b97\u7b26<\/span>
\n\u6309\u4f4d\u8fd0\u7b97\u7b26<\/span>
\n\u903b\u8f91\u8fd0\u7b97\u7b26<\/span>
\n\u8d4b\u503c\u8fd0\u7b97\u7b26<\/span>
\n\u7279\u6b8a\u8fd0\u7b97\u7b26<\/span> <\/p>\n
 JavaScript\u7b97\u672f\u8fd0\u7b97\u7b26<\/h2>\n
\n  \u7b97\u672f\u8fd0\u7b97\u7b26\u7528\u4e8e\u5bf9\u64cd\u4f5c\u6570\u6267\u884c\u7b97\u672f\u8fd0\u7b97\u3002\u4ee5\u4e0b\u8fd0\u7b97\u7b26\u88ab\u79f0\u4e3aJavaScript\u7b97\u672f\u8fd0\u7b97\u7b26\u3002\n<\/div>\n\n\n\n\n\n\n\n\n\n\n
\u64cd\u4f5c\u5458<\/td>\n\u8bf4\u660e<\/td>\n\u793a\u4f8b<\/td>\n<\/tr>\n
 + <\/td>\n\u6dfb\u52a0<\/td>\n 10 + 20 = 30 <\/td>\n<\/tr>\n
-<\/td>\n\u51cf\u6cd5<\/td>\n 20-10 = 10 <\/td>\n<\/tr>\n
 * <\/td>\n\u4e58\u6cd5<\/td>\n 10 * 20 = 200 <\/td>\n<\/tr>\n
\/<\/td>\n\u90e8\u95e8<\/td>\n 20\/10 = 2 <\/td>\n<\/tr>\n
\uff05<\/td>\n\u6a21\u91cf(\u5269\u4f59)<\/td>\n 20\uff0510 = 0 <\/td>\n<\/tr>\n
 ++ <\/td>\n\u589e\u91cf<\/td>\n var a = 10; a ++;\u73b0\u5728a = 11 <\/td>\n<\/tr>\n
-<\/td>\n\u51cf\u91cf<\/td>\n var a = 10;\u4e00\u79cd - ;\u73b0\u5728a = 9 <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
 JavaScript\u6bd4\u8f83\u8fd0\u7b97\u7b26<\/h2>\n
\n  JavaScript\u6bd4\u8f83\u8fd0\u7b97\u7b26\u5c06\u4e24\u4e2a\u64cd\u4f5c\u6570\u8fdb\u884c\u6bd4\u8f83\u3002\u6bd4\u8f83\u8fd0\u7b97\u7b26\u5982\u4e0b\uff1a\n<\/div>\n\n\n\n\n\n\n\n\n\n\n\n
\u64cd\u4f5c\u5458<\/td>\n\u8bf4\u660e<\/td>\n\u793a\u4f8b<\/td>\n<\/tr>\n
 == <\/td>\n\u7b49\u4e8e<\/td>\n 10 == 20 = false<\/td>\n<\/tr>\n
 === <\/td>\n\u76f8\u540c(\u76f8\u540c\u7c7b\u578b)<\/td>\n 10 == 20 = false<\/td>\n<\/tr>\n
!= <\/td>\n\u4e0d\u7b49\u4e8e<\/td>\n 10!= 20 = true <\/td>\n<\/tr>\n
!== <\/td>\n\u4e0d\u76f8\u540c<\/td>\n 20!== 20 = false<\/td>\n<\/tr>\n
> <\/td>\n\u5927\u4e8e<\/td>\n 20> 10 = true<\/td>\n<\/tr>\n
> = <\/td>\n\u5927\u4e8e\u6216\u7b49\u4e8e<\/td>\n 20> = 10 = true<\/td>\n<\/tr>\n
 <<\/td>\n\u5c11\u4e8e <\/td>\n 20 < 10 = false<\/td>\n<\/tr>\n
 <= <\/td>\n\u5c0f\u4e8e\u6216\u7b49\u4e8e <\/td>\n 20 <= 10 = false<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
 JavaScript\u6309\u4f4d\u8fd0\u7b97\u7b26<\/h2>\n
\n  \u6309\u4f4d\u8fd0\u7b97\u7b26\u5bf9\u64cd\u4f5c\u6570\u6267\u884c\u6309\u4f4d\u8fd0\u7b97\u3002\u6309\u4f4d\u8fd0\u7b97\u7b26\u5982\u4e0b\uff1a\n<\/div>\n\n\n\n\n\n\n\n\n\n\n
\u64cd\u4f5c\u5458<\/td>\n\u8bf4\u660e<\/td>\n\u793a\u4f8b<\/td>\n<\/tr>\n
\uff06<\/td>\n\u6309\u4f4d\u4e0e<\/td>\n(10 == 20\uff0620 == 33)= false<\/td>\n<\/tr>\n
 | <\/td>\n\u6309\u4f4d\u6216<\/td>\n(10 == 20 | 20 == 33)= false<\/td>\n<\/tr>\n
 ^ <\/td>\n\u6309\u4f4d\u5f02\u6216<\/td>\n(10 == 20 ^ 20 == 33)= false<\/td>\n<\/tr>\n
\u301c<\/td>\n\u6309\u4f4d\u975e<\/td>\n(\u301c10)= -10 <\/td>\n<\/tr>\n
 <<<\/td>\n\u6309\u4f4d\u5de6\u79fb <\/td>\n(10 << 2)=40 <\/td>\n<\/tr>\n
>> <\/td>\n\u6309\u4f4d\u53f3\u79fb<\/td>\n(10 >> 2)= 2 <\/td>\n<\/tr>\n
>>> <\/td>\n\u96f6\u4f4d\u6309\u4f4d\u53f3\u79fb<\/td>\n(10 >>> 2)= 2 <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
 JavaScript\u903b\u8f91\u8fd0\u7b97\u7b26<\/h2>\n
\n  \u4ee5\u4e0b\u8fd0\u7b97\u7b26\u88ab\u79f0\u4e3aJavaScript\u903b\u8f91\u8fd0\u7b97\u7b26\u3002\n<\/div>\n\n\n\n\n\n\n
\u64cd\u4f5c\u5458<\/td>\n\u8bf4\u660e<\/td>\n\u793a\u4f8b<\/td>\n<\/tr>\n
 && <\/td>\n\u903b\u8f91\u4e0e<\/td>\n(10 == 20 && 20 == 33)= false<\/td>\n<\/tr>\n
 || <\/td>\n\u903b\u8f91\u6216<\/td>\n(10 == 20 || 20 == 33)= false<\/td>\n<\/tr>\n
!<\/td>\n\u903b\u8f91\u975e<\/td>\n!(10 == 20)= true <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
 JavaScript\u8d4b\u503c\u8fd0\u7b97\u7b26<\/h2>\n
\n  \u4ee5\u4e0b\u8fd0\u7b97\u7b26\u88ab\u79f0\u4e3aJavaScript\u8d4b\u503c\u8fd0\u7b97\u7b26\u3002\n<\/div>\n\n\n\n\n\n\n\n\n\n
\u64cd\u4f5c\u5458<\/td>\n\u8bf4\u660e<\/td>\n\u793a\u4f8b<\/td>\n<\/tr>\n
 = <\/td>\n\u5206\u914d<\/td>\n 10 + 10 = 20 <\/td>\n<\/tr>\n
 + = <\/td>\n\u6dfb\u52a0\u5e76\u5206\u914d<\/td>\n var a = 10; a + = 20;a = 30 <\/td>\n<\/tr>\n
-= <\/td>\n\u51cf\u53bb\u5e76\u5206\u914d<\/td>\n var a = 20; a- = 10;a = 10 <\/td>\n<\/tr>\n
 * = <\/td>\n\u76f8\u4e58\u5e76\u8d4b\u503c<\/td>\n var a = 10; a * = 20;a = 200 <\/td>\n<\/tr>\n
\/= <\/td>\n\u5212\u5206\u5e76\u5206\u914d<\/td>\n var a = 10; a\/= 2;a = 5 <\/td>\n<\/tr>\n
\uff05= <\/td>\n\u6a21\u6570\u548c\u8d4b\u503c<\/td>\n var a = 10; a\uff05= 2;a = 0 <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
 JavaScript\u7279\u6b8a\u8fd0\u7b97\u7b26<\/h2>\n
\n  \u4ee5\u4e0b\u8fd0\u7b97\u7b26\u88ab\u79f0\u4e3aJavaScript\u7279\u6b8a\u8fd0\u7b97\u7b26\u3002\n<\/div>\n\n\n\n\n\n\n\n\n\n\n\n\n
\u64cd\u4f5c\u5458<\/td>\n\u8bf4\u660e<\/td>\n<\/tr>\n
(\uff1f:)<\/td>\n\u6761\u4ef6\u8fd0\u7b97\u7b26\u6839\u636e\u6761\u4ef6\u8fd4\u56de\u503c\u3002\u5c31\u50cfif-else\u3002<\/td>\n<\/tr>\n
\uff0c<\/td>\n\u9017\u53f7\u8fd0\u7b97\u7b26\u5141\u8bb8\u5c06\u591a\u4e2a\u8868\u8fbe\u5f0f\u4f5c\u4e3a\u5355\u4e2a\u8bed\u53e5\u6c42\u503c\u3002<\/td>\n<\/tr>\n
delete<\/td>\n\u5220\u9664\u8fd0\u7b97\u7b26\u5c06\u4ece\u5bf9\u8c61\u4e2d\u5220\u9664\u5c5e\u6027\u3002<\/td>\n<\/tr>\n
 in <\/td>\n In Operator\u68c0\u67e5\u5bf9\u8c61\u662f\u5426\u5177\u6709\u7ed9\u5b9a\u7684\u5c5e\u6027<\/td>\n<\/tr>\n
 instanceof <\/td>\n\u68c0\u67e5\u5bf9\u8c61\u662f\u5426\u4e3a\u7ed9\u5b9a\u7c7b\u578b\u7684\u5b9e\u4f8b<\/td>\n<\/tr>\n
new<\/td>\n\u521b\u5efa\u4e00\u4e2a\u5b9e\u4f8b(\u5bf9\u8c61)<\/td>\n<\/tr>\n
 typeof <\/td>\n\u68c0\u67e5\u5bf9\u8c61\u7684\u7c7b\u578b\u3002<\/td>\n<\/tr>\n
 void <\/td>\n\u5b83\u653e\u5f03\u8868\u8fbe\u5f0f\u7684\u8fd4\u56de\u503c\u3002<\/td>\n<\/tr>\n
yield<\/td>\n\u68c0\u67e5\u751f\u6210\u5668\u7684\u8fed\u4ee3\u5668\u5728\u751f\u6210\u5668\u4e2d\u8fd4\u56de\u7684\u5185\u5bb9\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"JavaScript\u8fd0\u7b97\u7b26zh-cn","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[179],"tags":[],"class_list":["post-2660","post","type-post","status-publish","format-standard","hentry","category-javascript-jc"],"_links":{"self":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/2660"}],"collection":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/comments?post=2660"}],"version-history":[{"count":0,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/2660\/revisions"}],"wp:attachment":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/media?parent=2660"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/categories?post=2660"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/tags?post=2660"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}