{"id":333,"date":"2020-02-04T22:46:43","date_gmt":"2020-02-04T14:46:43","guid":{"rendered":"https:\/\/blog.cqdefxxx.com\/?p=333"},"modified":"2020-02-04T22:46:43","modified_gmt":"2020-02-04T14:46:43","slug":"%e6%95%b0%e7%bb%84%e7%9a%84%e5%88%9b%e5%bb%ba%e4%b8%8e%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/blog.viter.top\/index.php\/2020\/02\/04\/%e6%95%b0%e7%bb%84%e7%9a%84%e5%88%9b%e5%bb%ba%e4%b8%8e%e6%93%8d%e4%bd%9c\/","title":{"rendered":"\u6570\u7ec4\u7684\u521b\u5efa\u4e0e\u64cd\u4f5c"},"content":{"rendered":"
<!DOCTYPE html>\n<html>\n\t<head>\n\t\t<meta charset=\"UTF-8\">\n\t\t<title><\/title>\n\t\t<script type=\"text\/javascript\">\n\t\t\t\n\t\t\t\/*\n\t\t\t * \u5185\u5efa\u5bf9\u8c61\n\t\t\t * \u5bbf\u4e3b\u5bf9\u8c61\n\t\t\t * \u81ea\u5b9a\u4e49\u5bf9\u8c61\n\t\t\t * \n\t\t\t * \u6570\u7ec4\uff08Array\uff09\n\t\t\t * \t- \u6570\u7ec4\u4e5f\u662f\u4e00\u4e2a\u5bf9\u8c61\n\t\t\t * \t- \u5b83\u548c\u6211\u4eec\u666e\u901a\u5bf9\u8c61\u529f\u80fd\u7c7b\u4f3c\uff0c\u4e5f\u662f\u7528\u6765\u5b58\u50a8\u4e00\u4e9b\u503c\u7684\n\t\t\t * \t- \u4e0d\u540c\u7684\u662f\u666e\u901a\u5bf9\u8c61\u662f\u4f7f\u7528\u5b57\u7b26\u4e32\u4f5c\u4e3a\u5c5e\u6027\u540d\u7684\uff0c\n\t\t\t * \t\t\u800c\u6570\u7ec4\u65f6\u4f7f\u7528\u6570\u5b57\u6765\u4f5c\u4e3a\u7d22\u5f15\u64cd\u4f5c\u5143\u7d20\n\t\t\t * \t- \u7d22\u5f15\uff1a\n\t\t\t * \t\t\u4ece0\u5f00\u59cb\u7684\u6574\u6570\u5c31\u662f\u7d22\u5f15\n\t\t\t * \t- \u6570\u7ec4\u7684\u5b58\u50a8\u6027\u80fd\u6bd4\u666e\u901a\u5bf9\u8c61\u8981\u597d\uff0c\u5728\u5f00\u53d1\u4e2d\u6211\u4eec\u7ecf\u5e38\u4f7f\u7528\u6570\u7ec4\u6765\u5b58\u50a8\u4e00\u4e9b\u6570\u636e\n\t\t\t *\/\n\t\t\t\n\t\t\t\/\/\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\n\t\t\tvar arr = new Array();\n\t\t\t\n\t\t\t\/\/\u4f7f\u7528typeof\u68c0\u67e5\u4e00\u4e2a\u6570\u7ec4\u65f6\uff0c\u4f1a\u8fd4\u56deobject\n\t\t\t\/\/console.log(typeof arr);\n\t\t\t\n\t\t\t\/*\n\t\t\t * \u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u5143\u7d20\n\t\t\t * \u8bed\u6cd5\uff1a\u6570\u7ec4[\u7d22\u5f15] = \u503c\n\t\t\t *\/\n\t\t\tarr[0] = 10;\n\t\t\tarr[1] = 33;\n\t\t\tarr[2] = 22;\n\t\t\tarr[3] = 44;\n\t\t\t\/*arr[10] = 31;\n\t\t\tarr[100] = 90;*\/\n\t\t\t\n\t\t\t\/*\n\t\t\t * \u8bfb\u53d6\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\n\t\t\t * \u8bed\u6cd5\uff1a\u6570\u7ec4[\u7d22\u5f15]\n\t\t\t * \t\u5982\u679c\u8bfb\u53d6\u4e0d\u5b58\u5728\u7684\u7d22\u5f15\uff0c\u4ed6\u4e0d\u4f1a\u62a5\u9519\u800c\u662f\u8fd4\u56deundefined\n\t\t\t *\/\n\t\t\t\n\t\t\t\/\/console.log(arr[3]);\n\t\t\t\n\t\t\t\/*\n\t\t\t * \u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\n\t\t\t * \u53ef\u4ee5\u4f7f\u7528length\u5c5e\u6027\u6765\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6(\u5143\u7d20\u7684\u4e2a\u6570)\n\t\t\t * \t\u8bed\u6cd5\uff1a\u6570\u7ec4.length\n\t\t\t * \n\t\t\t * \u5bf9\u4e8e\u8fde\u7eed\u7684\u6570\u7ec4\uff0c\u4f7f\u7528length\u53ef\u4ee5\u83b7\u53d6\u5230\u6570\u7ec4\u7684\u957f\u5ea6\uff08\u5143\u7d20\u7684\u4e2a\u6570\uff09\n\t\t\t * \u5bf9\u4e8e\u975e\u8fde\u7eed\u7684\u6570\u7ec4\uff0c\u4f7f\u7528length\u4f1a\u83b7\u53d6\u5230\u6570\u7ec4\u7684\u6700\u5927\u7684\u7d22\u5f15+1\n\t\t\t * \t\t\u5c3d\u91cf\u4e0d\u8981\u521b\u5efa\u975e\u8fde\u7eed\u7684\u6570\u7ec4\n\t\t\t *\/\n\t\t\t\/*console.log(arr.length);\n\t\t\tconsole.log(arr);*\/\n\t\t\t\n\t\t\t\/*\n\t\t\t * \u4fee\u6539length\n\t\t\t * \t\u5982\u679c\u4fee\u6539\u7684length\u5927\u4e8e\u539f\u957f\u5ea6\uff0c\u5219\u591a\u51fa\u90e8\u5206\u4f1a\u7a7a\u51fa\u6765\n\t\t\t *  \u5982\u679c\u4fee\u6539\u7684length\u5c0f\u4e8e\u539f\u957f\u5ea6\uff0c\u5219\u591a\u51fa\u7684\u5143\u7d20\u4f1a\u88ab\u5220\u9664\n\t\t\t *\/\n\t\t\t\/\/arr.length = 10;\n\t\t\t\n\t\t\t\/*arr.length = 2;\n\t\t\t\n\t\t\tconsole.log(arr.length);\n\t\t\tconsole.log(arr);*\/\n\t\t\t\n\t\t\tarr[4] = 50;\n\t\t\tarr[5] = 60;\n\t\t\t\n\t\t\t\/\/\u5411\u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u4f4d\u7f6e\u6dfb\u52a0\u5143\u7d20\n\t\t\t\/\/\u8bed\u6cd5\uff1a\u6570\u7ec4[\u6570\u7ec4.length] = \u503c;\n\t\t\tarr[arr.length] = 70;\n\t\t\tarr[arr.length] = 80;\n\t\t\tarr[arr.length] = 90;\n\t\t\t\n\t\t\tconsole.log(arr);\n\t\t\t\n\t\t<\/script>\n\t<\/head>\n\t<body>\n\t<\/body>\n<\/html>\n<\/code><\/pre>\n
 <\/p>\n
\u6570\u7ec4\u7684\u521b\u5efa\uff1a<\/h1>\n
<!DOCTYPE html>\n<html>\n\t<head>\n\t\t<meta charset=\"UTF-8\">\n\t\t<title><\/title>\n\t\t<script type=\"text\/javascript\">\n\t\t\t\n\t\t\t\/\/\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\n\t\t\t\/\/var arr = new Array();\n\t\t\t\n\t\t\t\/\/\u4f7f\u7528\u5b57\u9762\u91cf\u6765\u521b\u5efa\u6570\u7ec4\n\t\t\t\/\/\u8bed\u6cd5:[]\n\t\t\t\/\/var arr = [];\n\t\t\t\n\t\t\t\/\/console.log(typeof arr);\n\t\t\t\n\t\t\t\/\/\u4f7f\u7528\u5b57\u9762\u91cf\u521b\u5efa\u6570\u7ec4\u65f6\uff0c\u53ef\u4ee5\u5728\u521b\u5efa\u65f6\u5c31\u6307\u5b9a\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\n\t\t\tvar arr = [1,2,3,4,5,10];\n\t\t\t\n\t\t\t\/\/console.log(arr[3]);\n\t\t\t\n\t\t\t\/\/\u4f7f\u7528\u6784\u9020\u51fd\u6570\u521b\u5efa\u6570\u7ec4\u65f6\uff0c\u4e5f\u53ef\u4ee5\u540c\u65f6\u6dfb\u52a0\u5143\u7d20\uff0c\u5c06\u8981\u6dfb\u52a0\u7684\u5143\u7d20\u4f5c\u6587\u6784\u9020\u51fd\u6570\u7684\u53c2\u6570\u4f20\u9012\n\t\t\t\/\/\u5143\u7d20\u4e4b\u95f4\u4f7f\u7528,\u9694\u5f00\n\t\t\tvar arr2 = new Array(10,20,30);\n\t\t\t\/\/console.log(arr2);\n\t\t\t\n\t\t\t\/\/\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u6570\u7ec4\u4e2d\u53ea\u6709\u4e00\u4e2a\u5143\u7d2010\n\t\t\tarr = [10];\n\t\t\t\n\t\t\t\/\/\u521b\u5efa\u4e00\u4e2a\u957f\u5ea6\u4e3a10\u7684\u6570\u7ec4\n\t\t\tarr2 = new Array(10);\n\t\t\t\n\t\t\t\/\/console.log(arr2.length);\n\t\t\t\/\/\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u53ef\u4ee5\u662f\u4efb\u610f\u7684\u6570\u636e\u7c7b\u578b\n\t\t\tarr = [\"hello\",1,true,null,undefined];\n\t\t\t\n\t\t\t\/\/\u4e5f\u53ef\u4ee5\u662f\u5bf9\u8c61\n\t\t\tvar obj = {name:\"\u5b59\u609f\u7a7a\"};\n\t\t\tarr[arr.length] = obj;\n\t\t\tarr = [{name:\"\u5b59\u609f\u7a7a\"},{name:\"\u6c99\u548c\u5c1a\"},{name:\"\u732a\u516b\u6212\"}];\n\t\t\t\n\t\t\t\/\/\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a\u51fd\u6570\n\t\t\tarr = [function(){alert(1)},function(){alert(2)}];\n\t\t\t\n\t\t\t\/\/console.log(arr);\n\t\t\t\/\/arr[0]();\n\t\t\t\n\t\t\t\/\/\u6570\u7ec4\u4e2d\u4e5f\u53ef\u4ee5\u653e\u6570\u7ec4\uff0c\u5982\u4e0b\u8fd9\u79cd\u6570\u7ec4\u6211\u4eec\u79f0\u4e3a\u4e8c\u7ef4\u6570\u7ec4\n\t\t\tarr = [[1,2,3],[3,4,5],[5,6,7]];\n\t\t\tconsole.log(arr[1]);\n\t\t\t\n\t\t<\/script>\n\t<\/head>\n\t<body>\n\t<\/body>\n<\/html>\n<\/code><\/pre>\n
 <\/p>\n
\u6570\u7ec4\u7684\u65b9\u6cd5\uff1a<\/h1>\n
<!DOCTYPE html>\n<html>\n\t<head>\n\t\t<meta charset=\"UTF-8\">\n\t\t<title><\/title>\n\t\t<script type=\"text\/javascript\">\n\t\t\t\n\t\t\t\/\/\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\n\t\t\tvar arr = [\"\u5b59\u609f\u7a7a\",\"\u732a\u516b\u6212\",\"\u6c99\u548c\u5c1a\"];\n\t\t\t\n\t\t\t\/*\n\t\t\t * push()\n\t\t\t * \t- \u8be5\u65b9\u6cd5\u53ef\u4ee5\u5411\u6570\u7ec4\u7684\u672b\u5c3e\u6dfb\u52a0\u4e00\u4e2a\u6216\u591a\u4e2a\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u6570\u7ec4\u7684\u65b0\u7684\u957f\u5ea6\n\t\t\t * \t- \u53ef\u4ee5\u5c06\u8981\u6dfb\u52a0\u7684\u5143\u7d20\u4f5c\u4e3a\u65b9\u6cd5\u7684\u53c2\u6570\u4f20\u9012\uff0c\n\t\t\t * \t\t\u8fd9\u6837\u8fd9\u4e9b\u5143\u7d20\u5c06\u4f1a\u81ea\u52a8\u6dfb\u52a0\u5230\u6570\u7ec4\u7684\u672b\u5c3e\n\t\t\t * \t- \u8be5\u65b9\u6cd5\u4f1a\u5c06\u6570\u7ec4\u65b0\u7684\u957f\u5ea6\u4f5c\u4e3a\u8fd4\u56de\u503c\u8fd4\u56de\n\t\t\t *\/\n\t\t\t\n\t\t\tvar result = arr.push(\"\u5510\u50e7\",\"\u8718\u86db\u7cbe\",\"\u767d\u9aa8\u7cbe\",\"\u7389\u5154\u7cbe\");\n\t\t\t\n\t\t\t\n\t\t\t\/\/console.log(arr);\n\t\t\t\/\/console.log(\"result = \"+result);\n\t\t\t\n\t\t\t\/*\n\t\t\t * pop()\n\t\t\t * \t- \u8be5\u65b9\u6cd5\u53ef\u4ee5\u5220\u9664\u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20,\u5e76\u5c06\u88ab\u5220\u9664\u7684\u5143\u7d20\u4f5c\u4e3a\u8fd4\u56de\u503c\u8fd4\u56de\n\t\t\t *\/\n\t\t\tresult = arr.pop();\n\t\t\t\/*console.log(arr);\n\t\t\tconsole.log(\"result = \"+result);*\/\n\t\t\t\n\t\t\t\/*\n\t\t\t * unshift()\n\t\t\t * \t- \u5411\u6570\u7ec4\u5f00\u5934\u6dfb\u52a0\u4e00\u4e2a\u6216\u591a\u4e2a\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u65b0\u7684\u6570\u7ec4\u957f\u5ea6\n\t\t\t * \t- \u5411\u524d\u8fb9\u63d2\u5165\u5143\u7d20\u4ee5\u540e\uff0c\u5176\u4ed6\u7684\u5143\u7d20\u7d22\u5f15\u4f1a\u4f9d\u6b21\u8c03\u6574\n\t\t\t *\/\n\t\t\t\/\/console.log(arr);\n\t\t\t\n\t\t\tarr.unshift(\"\u725b\u9b54\u738b\",\"\u4e8c\u90ce\u795e\");\n\t\t\t\n\t\t\tconsole.log(arr);\n\t\t\t\n\t\t\t\/*\n\t\t\t * shift()\n\t\t\t * \t- \u53ef\u4ee5\u5220\u9664\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u5e76\u5c06\u88ab\u5220\u9664\u7684\u5143\u7d20\u4f5c\u4e3a\u8fd4\u56de\u503c\u8fd4\u56de\n\t\t\t *\/\n\t\t\tresult = arr.shift();\n\t\t\tresult = arr.shift();\n\t\t\t\n\t\t\tconsole.log(arr);\n\t\t\tconsole.log(\"result = \"+result);\n\t\t\t\n\t\t\t\n\t\t<\/script>\n\t<\/head>\n\t<body>\n\t<\/body>\n<\/html>\n<\/code><\/pre>\n
<!DOCTYPE html>\n<html>\n\t<head>\n\t\t<meta charset=\"UTF-8\">\n\t\t<title><\/title>\n\t\t<script type=\"text\/javascript\">\n\t\t\t\n\t\t\tvar arr = [\"\u5b59\u609f\u7a7a\",\"\u732a\u516b\u6212\",\"\u6c99\u548c\u5c1a\",\"\u5510\u50e7\",\"\u767d\u9aa8\u7cbe\"];\n\t\t\t\n\t\t\t\/*\n\t\t\t * slice()\n\t\t\t * \t- \u53ef\u4ee5\u7528\u6765\u4ece\u6570\u7ec4\u63d0\u53d6\u6307\u5b9a\u5143\u7d20\n\t\t\t * \t- \u8be5\u65b9\u6cd5\u4e0d\u4f1a\u6539\u53d8\u5143\u7d20\u6570\u7ec4\uff0c\u800c\u662f\u5c06\u622a\u53d6\u5230\u7684\u5143\u7d20\u5c01\u88c5\u5230\u4e00\u4e2a\u65b0\u6570\u7ec4\u4e2d\u8fd4\u56de\n\t\t\t * \t- \u53c2\u6570\uff1a\n\t\t\t * \t\t1.\u622a\u53d6\u5f00\u59cb\u7684\u4f4d\u7f6e\u7684\u7d22\u5f15,\u5305\u542b\u5f00\u59cb\u7d22\u5f15\n\t\t\t * \t\t2.\u622a\u53d6\u7ed3\u675f\u7684\u4f4d\u7f6e\u7684\u7d22\u5f15,\u4e0d\u5305\u542b\u7ed3\u675f\u7d22\u5f15\n\t\t\t * \t\t\t- \u7b2c\u4e8c\u4e2a\u53c2\u6570\u53ef\u4ee5\u7701\u7565\u4e0d\u5199,\u6b64\u65f6\u4f1a\u622a\u53d6\u4ece\u5f00\u59cb\u7d22\u5f15\u5f80\u540e\u7684\u6240\u6709\u5143\u7d20\n\t\t\t * \t\t- \u7d22\u5f15\u53ef\u4ee5\u4f20\u9012\u4e00\u4e2a\u8d1f\u503c\uff0c\u5982\u679c\u4f20\u9012\u4e00\u4e2a\u8d1f\u503c\uff0c\u5219\u4ece\u540e\u5f80\u524d\u8ba1\u7b97\n\t\t\t * \t\t\t-1 \u5012\u6570\u7b2c\u4e00\u4e2a\n\t\t\t * \t\t\t-2 \u5012\u6570\u7b2c\u4e8c\u4e2a\n\t\t\t *\/\n\t\t\t\n\t\t\tvar result = arr.slice(1,4);\n\t\t\t\n\t\t\tresult = arr.slice(3);\n\t\t\t\n\t\t\tresult = arr.slice(1,-2);\n\t\t\t\n\t\t\t\/\/console.log(result);\n\t\t\t\n\t\t\t\/*\n\t\t\t * splice()\n\t\t\t * \t- \u53ef\u4ee5\u7528\u4e8e\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u6307\u5b9a\u5143\u7d20\n\t\t\t * \t- \u4f7f\u7528splice()\u4f1a\u5f71\u54cd\u5230\u539f\u6570\u7ec4\uff0c\u4f1a\u5c06\u6307\u5b9a\u5143\u7d20\u4ece\u539f\u6570\u7ec4\u4e2d\u5220\u9664\n\t\t\t * \t\t\u5e76\u5c06\u88ab\u5220\u9664\u7684\u5143\u7d20\u4f5c\u4e3a\u8fd4\u56de\u503c\u8fd4\u56de\n\t\t\t * \t- \u53c2\u6570\uff1a\n\t\t\t * \t\t\u7b2c\u4e00\u4e2a\uff0c\u8868\u793a\u5f00\u59cb\u4f4d\u7f6e\u7684\u7d22\u5f15\n\t\t\t * \t\t\u7b2c\u4e8c\u4e2a\uff0c\u8868\u793a\u5220\u9664\u7684\u6570\u91cf\n\t\t\t * \t\t\u7b2c\u4e09\u4e2a\u53ca\u4ee5\u540e\u3002\u3002\n\t\t\t * \t\t\t\u53ef\u4ee5\u4f20\u9012\u4e00\u4e9b\u65b0\u7684\u5143\u7d20\uff0c\u8fd9\u4e9b\u5143\u7d20\u5c06\u4f1a\u81ea\u52a8\u63d2\u5165\u5230\u5f00\u59cb\u4f4d\u7f6e\u7d22\u5f15\u524d\u8fb9\n\t\t\t * \t\n\t\t\t *\/\n\t\t\t\n\t\t\tarr = [\"\u5b59\u609f\u7a7a\",\"\u732a\u516b\u6212\",\"\u6c99\u548c\u5c1a\",\"\u5510\u50e7\",\"\u767d\u9aa8\u7cbe\"];\n\t\t\tvar result = arr.splice(3,0,\"\u725b\u9b54\u738b\",\"\u94c1\u6247\u516c\u4e3b\",\"\u7ea2\u5b69\u513f\");\n\t\t\t\n\t\t\tconsole.log(arr);\n\t\t\t\/\/console.log(result);\n\t\t\t\n\t\t\t\n\t\t<\/script>\n\t<\/head>\n\t<body>\n\t<\/body>\n<\/html>\n<\/code><\/pre>\n
<!DOCTYPE html>\n<html>\n\t<head>\n\t\t<meta charset=\"utf-8\" \/>\n\t\t<title><\/title>\n\t\t<script type=\"text\/javascript\">\n\t\t\t\n\t\t\tvar arr = [\"\u5b59\u609f\u7a7a\",\"\u732a\u516b\u6212\",\"\u6c99\u548c\u5c1a\"];\n\t\t\tvar arr2 = [\"\u767d\u9aa8\u7cbe\",\"\u7389\u5154\u7cbe\",\"\u8718\u86db\u7cbe\"];\n\t\t\tvar arr3 = [\"\u4e8c\u90ce\u795e\",\"\u592a\u4e0a\u8001\u541b\",\"\u7389\u7687\u5927\u5e1d\"];\n\t\t\t\n\t\t\t\/*\n\t\t\t * concat()\u53ef\u4ee5\u8fde\u63a5\u4e24\u4e2a\u6216\u591a\u4e2a\u6570\u7ec4\uff0c\u5e76\u5c06\u65b0\u7684\u6570\u7ec4\u8fd4\u56de\n\t\t\t * \t- \u8be5\u65b9\u6cd5\u4e0d\u4f1a\u5bf9\u539f\u6570\u7ec4\u4ea7\u751f\u5f71\u54cd\n\t\t\t *\/\n\t\t\tvar result = arr.concat(arr2,arr3,\"\u725b\u9b54\u738b\",\"\u94c1\u6247\u516c\u4e3b\");\n\t\t\t\n\t\t\t\/*\n\t\t\t * join()\n\t\t\t * \t- \u8be5\u65b9\u6cd5\u53ef\u4ee5\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32\n\t\t\t * \t- \u8be5\u65b9\u6cd5\u4e0d\u4f1a\u5bf9\u539f\u6570\u7ec4\u4ea7\u751f\u5f71\u54cd\uff0c\u800c\u662f\u5c06\u8f6c\u6362\u540e\u7684\u5b57\u7b26\u4e32\u4f5c\u4e3a\u7ed3\u679c\u8fd4\u56de\n\t\t\t * \t- \u5728join()\u4e2d\u53ef\u4ee5\u6307\u5b9a\u4e00\u4e2a\u5b57\u7b26\u4e32\u4f5c\u4e3a\u53c2\u6570\uff0c\u8fd9\u4e2a\u5b57\u7b26\u4e32\u5c06\u4f1a\u6210\u4e3a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u8fde\u63a5\u7b26\n\t\t\t * \t\t\u5982\u679c\u4e0d\u6307\u5b9a\u8fde\u63a5\u7b26\uff0c\u5219\u9ed8\u8ba4\u4f7f\u7528,\u4f5c\u4e3a\u8fde\u63a5\u7b26\n\t\t\t *\/\n\t\t\tarr = [\"\u5b59\u609f\u7a7a\",\"\u732a\u516b\u6212\",\"\u6c99\u548c\u5c1a\",\"\u5510\u50e7\"];\n\t\t\t\n\t\t\tresult = arr.join(\"@-@\");\n\t\t\t\/*\n\t\t\t * reverse()\n\t\t\t * \t- \u8be5\u65b9\u6cd5\u7528\u6765\u53cd\u8f6c\u6570\u7ec4\uff08\u524d\u8fb9\u7684\u53bb\u540e\u8fb9\uff0c\u540e\u8fb9\u7684\u53bb\u524d\u8fb9\uff09\n\t\t\t * \t- \u8be5\u65b9\u6cd5\u4f1a\u76f4\u63a5\u4fee\u6539\u539f\u6570\u7ec4\n\t\t\t *\/\n\t\t\t\n\t\t\tarr.reverse();\n\t\t\t\n\t\t\t\/\/console.log(arr);\n\t\t\t\n\t\t\tarr = [\"b\",\"d\",\"e\",\"a\",\"c\"];\n\t\t\t\n\t\t\t\/*\n\t\t\t * sort()\n\t\t\t * \t- \u53ef\u4ee5\u7528\u6765\u5bf9\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\n\t\t\t * \t- \u4e5f\u4f1a\u5f71\u54cd\u539f\u6570\u7ec4\uff0c\u9ed8\u8ba4\u4f1a\u6309\u7167Unicode\u7f16\u7801\u8fdb\u884c\u6392\u5e8f\n\t\t\t *\/\n\t\t\tarr.sort();\n\t\t\t\/\/arr.reverse();\n\t\t\t\n\t\t\t\/*\n\t\t\t * \u5373\u4f7f\u5bf9\u4e8e\u7eaf\u6570\u5b57\u7684\u6570\u7ec4\uff0c\u4f7f\u7528sort()\u6392\u5e8f\u65f6\uff0c\u4e5f\u4f1a\u6309\u7167Unicode\u7f16\u7801\u6765\u6392\u5e8f\uff0c\n\t\t\t * \t\u6240\u4ee5\u5bf9\u6570\u5b57\u8fdb\u6392\u5e8f\u65f6\uff0c\u53ef\u80fd\u4f1a\u5f97\u5230\u9519\u8bef\u7684\u7ed3\u679c\u3002\n\t\t\t * \n\t\t\t * \u6211\u4eec\u53ef\u4ee5\u81ea\u5df1\u6765\u6307\u5b9a\u6392\u5e8f\u7684\u89c4\u5219\n\t\t\t * \t\u6211\u4eec\u53ef\u4ee5\u5728sort()\u6dfb\u52a0\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u6765\u6307\u5b9a\u6392\u5e8f\u89c4\u5219\uff0c\n\t\t\t * \t\t\u56de\u8c03\u51fd\u6570\u4e2d\u9700\u8981\u5b9a\u4e49\u4e24\u4e2a\u5f62\u53c2,\n\t\t\t * \t\t\u6d4f\u89c8\u5668\u5c06\u4f1a\u5206\u522b\u4f7f\u7528\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u4f5c\u4e3a\u5b9e\u53c2\u53bb\u8c03\u7528\u56de\u8c03\u51fd\u6570\n\t\t\t * \t\t\u4f7f\u7528\u54ea\u4e2a\u5143\u7d20\u8c03\u7528\u4e0d\u786e\u5b9a\uff0c\u4f46\u662f\u80af\u5b9a\u7684\u662f\u5728\u6570\u7ec4\u4e2da\u4e00\u5b9a\u5728b\u524d\u8fb9\n\t\t\t * \t- \u6d4f\u89c8\u5668\u4f1a\u6839\u636e\u56de\u8c03\u51fd\u6570\u7684\u8fd4\u56de\u503c\u6765\u51b3\u5b9a\u5143\u7d20\u7684\u987a\u5e8f\uff0c\n\t\t\t * \t\t\u5982\u679c\u8fd4\u56de\u4e00\u4e2a\u5927\u4e8e0\u7684\u503c\uff0c\u5219\u5143\u7d20\u4f1a\u4ea4\u6362\u4f4d\u7f6e\n\t\t\t * \t\t\u5982\u679c\u8fd4\u56de\u4e00\u4e2a\u5c0f\u4e8e0\u7684\u503c\uff0c\u5219\u5143\u7d20\u4f4d\u7f6e\u4e0d\u53d8\n\t\t\t * \t\t\u5982\u679c\u8fd4\u56de\u4e00\u4e2a0\uff0c\u5219\u8ba4\u4e3a\u4e24\u4e2a\u5143\u7d20\u76f8\u7b49\uff0c\u4e5f\u4e0d\u4ea4\u6362\u4f4d\u7f6e\n\t\t\t * \n\t\t\t * \t- \u5982\u679c\u9700\u8981\u5347\u5e8f\u6392\u5217\uff0c\u5219\u8fd4\u56de a-b\n\t\t\t * \t\t\u5982\u679c\u9700\u8981\u964d\u5e8f\u6392\u5217\uff0c\u5219\u8fd4\u56deb-a\n\t\t\t *\/\n\t\t\tarr = [5,4,2,1,3,6,8,7];\n\t\t\t\n\t\t\tarr.sort(function(a,b){\n\t\t\t\t\n\t\t\t\t\/\/\u524d\u8fb9\u7684\u5927\n\t\t\t\t\/*if(a > b){\n\t\t\t\t\treturn -1;\n\t\t\t\t}else if(a < b){\n\t\t\t\t\treturn 1;\n\t\t\t\t}else{\n\t\t\t\t\treturn 0;\n\t\t\t\t}*\/\n\t\t\t\t\n\t\t\t\t\/\/\u5347\u5e8f\u6392\u5217\n\t\t\t\t\/\/return a - b;\n\t\t\t\t\n\t\t\t\t\/\/\u964d\u5e8f\u6392\u5217\n\t\t\t\treturn b - a;\n\t\t\t\t\n\t\t\t});\n\t\t\t\n\t\t\tconsole.log(arr);\n\t\t\t\n\t\t<\/script>\n\t<\/head>\n\t<body>\n\t\t\n\t<\/body>\n<\/html>\n<\/code><\/pre>\n
 <\/p>\n
 <\/p>\n
\u6570\u7ec4\u7684\u904d\u5386\uff1a<\/h1>\n
<!DOCTYPE html>\n<html>\n\t<head>\n\t\t<meta charset=\"UTF-8\">\n\t\t<title><\/title>\n\t\t<script type=\"text\/javascript\">\n\t\t\t\n\t\t\t\/\/\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\n\t\t\tvar arr = [\"\u5b59\u609f\u7a7a\",\"\u732a\u516b\u6212\",\"\u6c99\u548c\u5c1a\",\"\u5510\u50e7\",\"\u767d\u9aa8\u7cbe\"];\n\t\t\t\n\t\t\t\/\/\u6240\u8c13\u7684\u904d\u5386\u6570\u7ec4\uff0c\u5c31\u662f\u5c06\u6570\u7ec4\u4e2d\u6240\u6709\u7684\u5143\u7d20\u90fd\u53d6\u51fa\u6765\n\t\t\t\/*console.log(arr[0]);\n\t\t\tconsole.log(arr[1]);\n\t\t\tconsole.log(arr[2]);\n\t\t\tconsole.log(arr[3]);*\/\n\t\t\t\n\t\t\tfor(var i=0 ; i<arr.length ; i++){\n\t\t\t\tconsole.log(arr[i]);\n\t\t\t}\n\t\t\t\n\t\t<\/script>\n\t<\/head>\n\t<body>\n\t<\/body>\n<\/html>\n<\/code><\/pre>\n
 <\/p>\n
 <\/p>\n
 <\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
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