{"id":685,"date":"2023-11-25T09:01:01","date_gmt":"2023-11-25T01:01:01","guid":{"rendered":""},"modified":"2023-11-25T09:01:01","modified_gmt":"2023-11-25T01:01:01","slug":"\u5982\u4f55\u66f4\u9ad8\u6548\u7684\u62fc\u63a5\u5b57\u7b26\u4e32\uff1f","status":"publish","type":"post","link":"https:\/\/mushiming.com\/685.html","title":{"rendered":"\u5982\u4f55\u66f4\u9ad8\u6548\u7684\u62fc\u63a5\u5b57\u7b26\u4e32\uff1f"},"content":{"rendered":"
\n

\u6700\u5e38\u7528\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u5e94\u8be5\u662f\u4e0b\u9762\u51e0\u79cd\uff1a<\/p>\n<\/blockquote>\n

\/\/ 1.=\u64cd\u4f5c\u7b26<\/span>\nstr = 'a'<\/span> + 'b'<\/span> + 'c'<\/span>;\n\/\/ 2. +=\u64cd\u4f5c\u7b26<\/span>\nstr = 'a'<\/span>;\nstr += 'b'<\/span>;\nstr += 'c'<\/span>;\n\/\/ 3. Array.join()<\/span>\nstr = ['a'<\/span>, 'b'<\/span>, 'c'<\/span>].join(''<\/span>);\n\/\/ 4. String.concat()<\/span>\nstr = 'a'<\/span>;\nstr = str.concat('b'<\/span>, 'c'<\/span>);\n<\/code><\/pre>\n
\u90a3\u4e48\u6765\u770b\u4e00\u4e0b\u8fd9\u51e0\u79cd\u6709\u4ec0\u4e48\u533a\u522b\uff0c\u6216\u8005\u4f1a\u9020\u6210\u4ec0\u4e48\u5f71\u54cd\u3002<\/p>\n
\n
= \u548c +=\u64cd\u4f5c\u7b26<\/h3>\n
\u8fd0\u884cstr += 'one' + 'two'<\/code>\u4f1a\u7ecf\u5386\u4ee5\u4e0b4\u4e2a\u8fc7\u7a0b\uff1a<\/p>\n
    \n
  1. \u5728\u5185\u5b58\u4e2d\u521b\u5efa\u4e00\u4e2a\u4e34\u65f6\u5b57\u7b26\u4e32\uff1b<\/li>\n
  2. \u8fde\u63a5\u540e\u7684\u5b57\u7b26\u4e32onetwo<\/code>\u88ab\u8d4b\u503c\u7ed9\u8be5\u4e34\u65f6\u5b57\u7b26\u4e32\uff1b<\/li>\n
  3. \u4e34\u65f6\u5b57\u7b26\u4e32\u4e0estr<\/code>\u5f53\u524d\u7684\u503c\u8fde\u63a5\uff1b<\/li>\n
  4. \u7ed3\u679c\u8d4b\u503c\u7ed9str<\/code>\u3002<\/li>\n<\/ol>\n
    \u62fc\u63a5\u8fd9\u4e2a\u77ed\u77ed\u7684\u5b57\u7b26\u4e32\u5c31\u4f1a\u7ecf\u5386\u4ee5\u4e0a4\u4e2a\u6b65\u9aa4\uff0c\u90a3\u4e48\u53ef\u4ee5\u8fdb\u884c\u4f18\u5316\u5417\uff1f\u8bf7\u770b\u4e0b\u9762\u7684\u4ee3\u7801\uff1a<\/p>\n
    \/\/ 1<\/span>\nstr += 'one'<\/span>;\nstr += 'two'<\/span>;\n\/\/ 2<\/span>\nstr = str + 'one'<\/span> + 'two'<\/span>;\n<\/code><\/pre>\n
    \u4ee5\u4e0a\u4e24\u79cd\u65b9\u5f0f\u867d\u7136\u80fd\u8fbe\u5230\u540c\u6837\u7684\u6548\u679c\uff0c\u4f46\u662f\u5374\u53ef\u4ee5\u907f\u514d\u4ea7\u751f\u4e34\u65f6\u5b57\u7b26\u4e32\uff08\u4e5f\u5c31\u662f4\u4e2a\u6b65\u9aa4\u4e2d\u76841&2\u6b65\u9aa4\uff09\uff1b\u5728\u5927\u591a\u6570\u6d4f\u89c8\u5668\u4e2d\u8fd9\u6837\u505a\u4f1a\u63d0\u901f10%~40%\uff08IE7\u4ee5\u4e0a\uff0cIE8\u6548\u679c\u4e0d\u660e\u663e\uff0c\u5b9e\u73b0\u673a\u5236\u4e0e\u6b64\u4e0d\u540c\uff09\u3002<\/p>\n
    \u4f46\u662f\u5982\u679c\u5c06\u4e0a\u9762\u7684\u4ee3\u78012\u6362\u6210\uff1astr = 'one' + str + 'two'<\/code>\uff0c\u5219\u4f18\u5316\u5c06\u5931\u6548\u3002\u8fd9\u4e0e\u6d4f\u89c8\u5668\u5408\u5e76\u5b57\u7b26\u4e32\u65f6\u5206\u914d\u5185\u5b58\u7684\u65b9\u6cd5\u6709\u5173\uff1a<\/p>\n
    \n
    \u9664IE\u5916\uff0c\u5176\u4ed6\u6d4f\u89c8\u5668\u4f1a\u5c1d\u8bd5\u4e3a\u8868\u8fbe\u5f0f\u5de6\u4fa7\u7684\u5b57\u7b26\u4e32\u5206\u914d\u66f4\u591a\u7684\u5185\u5b58\uff0c\u7136\u540e\u7b80\u5355\u5730\u5c06\u7b2c\u4e8c\u4e2a\u5b57\u7b26\u4e32\u62f7\u8d1d\u81f3\u5b83\u7684\u672b\u5c3e\u3002\u5982\u679c\u5728\u4e00\u4e2a\u5faa\u73af\u4e2d\uff0c\u57fa\u7840\u5b57\u7b26\u4e32\u4f4d\u4e8e\u6700\u5de6\u7aef\u7684\u4f4d\u7f6e\uff0c\u5c31\u53ef\u4ee5\u907f\u514d\u91cd\u590d\u62f7\u8d1d\u4e00\u4e2a\u9010\u6e10\u53d8\u5927\u7684\u57fa\u7840\u5b57\u7b26\u4e32\u3002<\/p>\n
    \n
    \u57fa\u672c\u5b57\u7b26\u4e32\u53ef\u4ee5\u7406\u89e3\u4e3a\u8fde\u63a5\u65f6\u6392\u5728\u524d\u9762\u7684\u5b57\u7b26\u4e32\u3002\u4e5f\u5c31\u662f\u8bf4\uff1astr + 'one'<\/code>\u610f\u5473\u7740\u62f7\u8d1done<\/code>\u5e76\u9644\u52a0\u5728str<\/code>\u4e4b\u540e\uff0c\u800c'one' + str<\/code>\u5219\u610f\u5473\u7740\u8981\u62f7\u8d1dstr<\/code>\u5e76\u9644\u52a0\u5728'one'<\/code>\u4e4b\u540e\uff0c\u5982\u679cstr<\/code>\u5f88\u5927\uff0c\u62f7\u8d1d\u8fc7\u7a0b\u7684\u6027\u80fd\u635f\u8017\uff08\u5185\u5b58\u5360\u7528\uff09\u5c31\u4f1a\u5f88\u9ad8\u3002<\/p>\n<\/blockquote>\n<\/blockquote>\n
    \u8bf4\u56deIE8\u7684\u5b9e\u73b0\u673a\u5236\uff1a<\/p>\n
    \n
    \u5728IE8\u7684\u5b9e\u73b0\u4e2d\uff0c\u8fde\u63a5\u5b57\u7b26\u4e32\u53ea\u662f\u8bb0\u5f55\u73b0\u6709\u7684\u5b57\u7b26\u4e32\u7684\u5f15\u7528\u6765\u6784\u9020\u65b0\u7684\u5b57\u7b26\u4e32\u3002\u5728\u6700\u540e\u65f6\u523b\uff08\u5f53\u4f60\u771f\u6b63\u8981\u4f7f\u7528\u8fde\u63a5\u540e\u7684\u5b57\u7b26\u4e32\u65f6\uff09\uff0c\u5b57\u7b26\u4e32\u7684\u5404\u4e2a\u90e8\u5206\u624d\u4f1a\u9010\u4e2a\u62f7\u8d1d\u5230\u4e00\u4e2a\u65b0\u7684\u201c\u771f\u6b63\u7684\u201d\u5b57\u7b26\u4e32\u4e2d\uff0c\u7136\u540e\u7528\u5b83\u53d6\u4ee3\u5148\u524d\u7684\u5b57\u7b26\u4e32\u5f15\u7528\uff0c\u6240\u4ee5\u5e76\u975e\u6bcf\u6b21\u4f7f\u7528\u5b57\u7b26\u4e32\u65f6\u90fd\u53d1\u751f\u5408\u5e76\u64cd\u4f5c\u3002<\/p>\n<\/blockquote>\n
    \u800cIE7\u7684\u5b9e\u73b0\u673a\u5236\u66f4\u7cdf\u7cd5\uff1a<\/p>\n
    \n
    \u6bcf\u8fde\u63a5\u4e00\u5bf9\u5b57\u7b26\u4e32\u90fd\u8981\u628a\u5b83\u590d\u5236\u5230\u4e00\u5757\u65b0\u5206\u914d\u7684\u5185\u5b58\u4e2d\u3002<\/p>\n<\/blockquote>\n
    Array.join() \u548c String.prototype.concat()<\/h3>\n
    \n
    \u5927\u591a\u6570\u6d4f\u89c8\u5668\u4e2d\uff0c\u6570\u7ec4\u9879\u5408\u5e76\u6bd4\u5176\u4ed6\u5b57\u7b26\u4e32\u8fde\u63a5\u65b9\u6cd5\u66f4\u6162<\/p>\n<\/blockquote>\n
    Array.join()<\/code>\u5f53\u628a\u6240\u6709\u7684\u6570\u7ec4\u7684\u5143\u7d20\u8fde\u63a5\u5728\u4e00\u8d77\u65f6\uff0c\u6d4f\u89c8\u5668\u4f1a\u5206\u914d\u8db3\u591f\u7684\u5185\u5b58\u6765\u5b58\u653e\u6574\u4e2a\u5b57\u7b26\u4e32\uff0c\u800c\u4e14\u4e0d\u4f1a\u591a\u6b21\u62f7\u8d1d\u6700\u7ec8\u5b57\u7b26\u4e32\u4e2d\u76f8\u540c\u7684\u90e8\u5206\u3002<\/p>\n
    \u5b57\u7b26\u4e32\u7684\u539f\u751f\u65b9\u6cd5concat()<\/code>\u80fd\u63a5\u6536\u4efb\u610f\u6570\u91cf\u7684\u53c2\u6570\uff0c\u5e76\u5c06\u6bcf\u4e00\u4e2a\u53c2\u6570\u9644\u52a0\u5230\u6240\u8c03\u7528\u7684\u5b57\u7b26\u4e32\u4e0a\u3002\u4f46\u662f\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528concat()<\/code>\u6bd4\u4f7f\u7528\u7b80\u5355\u7684+<\/code>\u548c+=<\/code>\u7a0d\u6162\uff0c\u5c24\u5176\u5728IE\uff0cOpera\u548cChrome\u4e2d\u6162\u5f97\u66f4\u660e\u663e\u3002<\/p>\n
    \n
    \n
    \u5728\u300a\u9ad8\u6027\u80fdJavaScript\u300b\u770b\u5230\u4e86\u5c31\u8bb0\u5f55\u4e00\u4e0b\uff0c\u65b9\u4fbf\u4ee5\u540e\u67e5\u770b\u3002<\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"\u5982\u4f55\u66f4\u9ad8\u6548\u7684\u62fc\u63a5\u5b57\u7b26\u4e32\uff1f\u90a3\u4e48\u6765\u770b\u4e00\u4e0b\u8fd9\u51e0\u79cd\u6709\u4ec0\u4e48\u533a\u522b\uff0c\u6216\u8005\u4f1a\u9020\u6210\u4ec0\u4e48\u5f71\u54cd\u3002 \u7ed3\u679c\u8d4b\u503c\u7ed9str\u3002 \u4ee5\u4e0a\u4e24\u79cd\u65b9\u5f0f\u867d\u7136\u80fd\u8fbe\u5230\u540c\u6837...","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[82],"tags":[],"_links":{"self":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/685"}],"collection":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/comments?post=685"}],"version-history":[{"count":0,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/685\/revisions"}],"wp:attachment":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/media?parent=685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/categories?post=685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/tags?post=685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}