{"id":7970,"date":"2011-11-04T09:18:00","date_gmt":"2011-11-04T01:18:00","guid":{"rendered":""},"modified":"2011-11-04T09:18:00","modified_gmt":"2011-11-04T01:18:00","slug":"","status":"publish","type":"post","link":"https:\/\/www.homejamesfinance.com\/p\/7970.html","title":{"rendered":"\u5982\u4f55\u5229\u7528PCIe\u6280\u672f\u4f18\u5316\u4f01\u4e1aSSD\u7cfb\u7edf\u6027\u80fd"},"content":{"rendered":"

\u56fa\u6001\u786c\u76d8<\/a>(SSDs)\u5df2\u7ecf\u6210\u4e3a\u4f01\u4e1a\u3001\u6570\u636e\u4e2d\u5fc3\u548c\u4e91\u8bbe\u5907\u5fc5\u4e0d\u53ef\u5c11\u7684\u7ec4\u6210\u90e8\u5206\u3002\u800c\u6574\u4e2a\u884c\u4e1a\u53c8\u628a PCIe\u4f5c\u4e3aSSD\u6a21\u5757\u3001\u5b50\u7cfb\u7edf\u548c\u7cfb\u7edf\u7684\u4e3b\u8981\u63a5\u53e3\u3002<\/p>\n

\u3000\u3000PCIe\u6280\u672f<\/strong><\/p>\n

\u3000 \u3000PCIe \u5185\u8054\u6280\u672f\u5728\u9ad8\u79d1\u6280\u4ea7\u54c1\u5e02\u573a\u5df2\u88ab\u5e7f\u6cdb\u719f\u77e5\u548c\u4e86\u89e3\uff0c\u800c\u4e14\u5b83\u7684\u8d2d\u4e70\u6e20\u9053\u4f17\u591a\uff0c\u4f7f\u7528\u4e5f\u5df2\u5f88\u666e\u53ca\u3002\u800c\u5bf9\u4e8e\u90a3\u4e9b\u8fd8\u4e0d\u592a\u719f\u6089PCIe\u7684\u4eba\u4eec\u800c\u8a00\uff0c\u4ed6\u4eec\u77e5\u9053\u7684PCIe\u5c31\u662f 10\u5e74\u524d\u53d1\u660e\u7684\u4e00\u9879\u7528\u4e8e\u82af\u7247\u548c\u82af\u7247\u95f4\u4e92\u8054\u7684\u6280\u672f\uff0c\u53d6\u4ee3\u4e86\u88ab\u79f0\u4e3aPCI\u7684\u5e73\u884c\u4e3b\u603b\u7ebf\uff0c\u8fd8\u77e5\u9053PCIe\u7684\u5404\u79cd\u884d\u751f\u54c1\u548c\u540e\u7eed\u4ea7\u54c1\u4ee5\u53ca\u5b83\u4eec\u589e\u52a0\u4e86\u4e3b\u603b\u7ebf\u5bbd\u5ea6\u548c\u9891 \u7387\u3002<\/p>\n

\u3000\u3000PCIe \u662f\u4e00\u4e2a\u7cfb\u5217\u7684\u3001\u6709\u5dee\u522b\u7684\u3001\u57fa\u4e8e\u6570\u636e\u5305\u7684\u65e0\u635f\u534f\u8bae\uff0c\u5b83\u5728\u7269\u7406\uff0c\u94fe\u63a5\u548c\u5904\u7406\u5c42\u6709\u5f88\u591a\u7279\u6027\uff0c\u56e0\u6b64\u80fd\u6fc0\u6d3b\u7aef\u5bf9\u7aef\u8fde\u63a5\uff0c\u5e76\u5b9e\u73b0\u8fde\u63a5\u6545\u969c\u590d\u539f\u3002\u534f\u8bae\u7684\u5177\u4f53\u5185\u5bb9\u662f\u5728 PCIe \u673a\u7535\u534f\u8bae\u7684\u57fa\u7840\u4e0a\u8865\u5145\u5b8c\u6210\u7684\uff0c\u80fd\u63d0\u4f9b\u6807\u51c6\u7684\u8fde\u63a5\u5668\u548c\u4fe1\u53f7\u8d28\u91cf\u3002 PCIe\u534f\u8bae\u53ef\u4e0e\u4ee5\u524d\u7684PCI\u7cfb\u7edf\u8f6f\u4ef6\u548c\u5e94\u7528\u7a0b\u5e8f\u5b8c\u5168\u517c\u5bb9\u3002<\/p>\n

\u3000\u3000 \u5b83\u7684\u7b2c\u4e00\u4ee3\u4ea7\u54c1\u88ab\u79f0\u4e3aGen1\uff0c\u662f\u4e00\u4e2a\u4f20\u8f93\u901f\u5ea6\u4e3a2.5 GT\/s\u7684\u4e32\u884c\u53cc\u5411\u63a5\u53e3\uff0c\u540e\u6765\u901f\u5ea6\u63d0\u9ad8\u5230\u4e865.0GT\/s(Gen2)\uff0c\u6700\u540e\u5230\u4e868GT\/s(Gen3)\u3002 PCI-SIG\u8bba\u575b\u5df2\u7ecf\u5728\u8ba8\u8bba\u8ba9Gen4\u7684\u901f\u5ea6\u8fbe\u523016GT\/s\u3002PCIe\u7684\u9b45\u529b\u4e4b\u5904\u5728\u4e8e\u8bbe\u8ba1\u8005\u53ef\u5c062\u4e2a\u30014\u4e2a\u30018\u4e2a\u621616\u4e2aPCIe \u7ebf\u8def\u96c6\u6210\u5230\u4e00\u4e2a\u6570\u636e\u7aef\u53e3\u3002\u8fd8\u6709\u4e00\u70b9\u5bf9\u4e8e\u8bbe\u8ba1\u8005\u6765\u8bf4\u4e5f\u540c\u7b49\u91cd\u8981\uff0c\u5c31\u662fPCIe \u6240\u6709\u7684Gen2 \u548c Gen3\u7aef\u53e3\u5728\u901f\u5ea6\u4e0a\u90fd\u80fd\u548c\u4e4b\u524d\u7684\u4ea7\u54c1\u517c\u5bb9\u3002PCIe Gen3\u82af\u7247\u548cGen3\u7535\u8def\u677f\u73b0\u5728\u90fd\u53ef\u4ee5\u4e70\u5230\u4e86\uff0c\u800cPCIe Gen3\u7684\u6700\u7ec8\u4ea7\u54c1\u6709\u671b\u4e8e2012\u5e74\u4e0a\u534a\u5e74\u9762\u4e16\u3002\u5982\u679c\u6309\u7167\u8fc7\u53bb\u4ea7\u54c1\u66f4\u65b0\u6362\u4ee3\u7684\u901f\u5ea6\u6765\u63a8\u7b97\uff0cGen4\u4ea7\u54c1\u5c06\u5f88\u53ef\u80fd\u57282015\u5e74\u9762\u4e16\u3002<\/p>\n

\u3000\u3000\u4fdd\u969c\u4ea7\u54c1\u6027\u80fd\u3001\u53ef\u9760\u6027\u3001\u53ef\u670d\u52a1\u6027\u7684\u51e0\u5927\u7279\u70b9<\/strong><\/p>\n

\u3000\u3000PCIe \u4ea4\u6362\u673a<\/a>\u7684\u89c4\u683c\u6709\u591a\u79cd——\u4ece3\u4e2a\u523096\u4e2a\u7ebf\u8def\uff0c\u4ee5\u53ca\u4ece3\u4e2a\u81f324\u4e2a\u7aef\u53e3\uff0c\u800c\u4e14\u5176\u4e2d\u6bcf\u4e2a\u7aef\u53e3\u90fd\u53ef\u4ee5\u5b9e\u73b01×,2×,4×\u548c8×\u7ebf\u5bbd\uff0c\u6709\u4e9b\u5356\u5bb6\u751a\u81f3\u63a8\u51fa\u4e8616×\u7ebf\u5bbd\u3002\u5176\u4e2d\u4e00\u4e9b \u4ea4\u6362\u673a<\/a>\u7684\u5e26\u5bbd\u6709\u975e\u5e38\u5f3a\u7684\u53ef\u5851\u6027\u3002\u4e00\u4e2aGen3\u5355\u7ebf\u5bbd\u7aef\u53e3\u7684\u901f\u5ea6\u662f1GB\/s\uff0c\u800c\u4e00\u4e2a16\u7ebf\u7aef\u53e3\u6bcf\u4e2a\u65b9\u5411\u7684\u5bb9\u91cf\u90fd\u8fbe\u5230\u4e8616GB\u3002<\/p>\n

\u3000\u3000\u4e3a\u4e86\u4e30\u5bcc\u4ea7\u54c1\u4ee5\u6ee1\u8db3\u5e02\u573a\u7684\u4e0d\u540c\u9700\u6c42\uff0cPCIe \u4ea4\u6362\u5668\u751f\u4ea7\u5546\u4eec\u5bf9\u4ea7\u54c1\u8fdb\u884c\u4e86\u4e0d\u65ad\u7684\u521b\u65b0\uff0c\u4f7f\u4ea7\u54c1\u4f7f\u7528\u66f4\u7b80\u4fbf\u3001\u6027\u80fd\u66f4\u9ad8\u3001\u5177\u5907\u5931\u6548\u5907\u63f4\u3001\u6545\u969c\u8bc6\u522b\u3001\u6545\u969c\u9694\u79bb\u4ee5\u53ca\u73b0\u573a\u5347\u7ea7\u529f\u80fd\u3002\u82af\u7247\u7684\u4f17\u591a\u7279\u6027\uff0c\u6bd4\u5982\u7528\u4e8e\u6570\u636e\u4f20\u8f93\u7684\u76f4\u63a5 \u5185\u5b58<\/a>\u5b58\u53d6(DMA)\u529f\u80fd\uff0c\u5931\u6548\u5907\u63f4\u65f6\u7684\u975e\u900f\u660e\u6865\u63a5\u529f\u80fd\uff0c\u70b9\u5bf9\u70b9\u901a\u8baf\u529f\u80fd\uff0c\u7528\u4e8e\u73b0\u573a\u5347\u7ea7\u7684\u70ed\u63d2\u62d4\u529f\u80fd\uff0c\u4e3a\u4e86\u4fdd\u6301\u6570\u636e\u5b8c\u6574\u6027\u7684\u9519\u8bef\u68c0\u67e5\/\u6062\u590d\u529f\u80fd\uff0c\u4ee5\u53ca\u4e3a\u4fdd\u8bc1\u4f20\u8f93\u7a33\u5b9a\u5728\u5206\u914d\u5185\u90e8\u7f13\u51b2\u533a\u65f6\u7684\u7075\u6d3b\u6027\uff0c\u4f7fPCIe \u4ea4\u6362\u5668\u5177\u5907\u4e86\u5b9e\u73b0\u4e0a\u8ff0\u4f18\u5316\u548c\u529f\u80fd\u7684\u53ef\u80fd\u6027\u3002<\/p>\n

\u3000\u3000\u4f01\u4e1aSSD\u7cfb\u7edf\u8bbe\u8ba1\u7684\u6311\u6218<\/strong><\/p>\n

\u3000 \u3000\u7531\u4e8eSSD\u662f\u9ad8\u6027\u80fd\u4f01\u4e1a\u548c\u6570\u636e\u4e2d\u5fc3\u5e94\u7528\u7a0b\u5e8f\u9009\u7528\u7684\u4e13\u95e8\u5b58\u50a8\u5a92\u4ecb\uff0c\u6240\u4ee5\u73b0\u5728PCIe\u5728SSDs\u4e2d\u53d1\u6325\u7684\u4f5c\u7528\u53d8\u5f97\u66f4\u52a0\u91cd\u8981\u3002\u7136\u800c\uff0c\u4f4e\u4ef7\u4f4d\u7684\u975e\u6613\u5931\u6027\u5b58\u50a8\u5668 (NVMs) \u8010\u4e45\u6027\u6709\u9650\uff0c\u800c\u4e14\u56e0\u4e3a\u751f\u4ea7\u6280\u672f\u4e5f\u5728\u4e0d\u65ad\u66f4\u65b0\uff0c\u56e0\u6b64\u5236\u9020\u4e86\u5de8\u5927\u7684\u6311\u6218\u3002\u5305\u62ec\uff1a\u8010\u4e45\u6027\uff0c\u53ef\u9760\u6027\uff0c\u6570\u636e\u5b8c\u6574\u6027\uff0c\u53ef\u6269\u5c55\u6027\u4ee5\u53ca\u5e26\u5bbd\uff0c\u6027\u80fd\u548c\u89e3\u51b3\u65b9\u6848\u7684\u6210\u672c\u3002\u7cfb\u7edf\u8bbe \u8ba1\u8005\u4eec\u5df2\u7ecf\u4e3a\u6bcf\u4e2a\u76ee\u6807\u5e94\u7528\u7a0b\u5e8f\u627e\u5230\u4e86\u5e73\u8861\u6210\u672c\/\u6027\u80fd\u7684\u65b9\u6cd5\u3002<\/p>\n

\u3000\u3000\u5b9e\u73b0\u5e73\u8861\u7684\u65b9\u6cd5\u5982\u4e0b\uff1a<\/strong><\/p>\n

\n
\u3000\u3000• \u9009\u62e9\u6b63\u786e\u7684SSD\u63a7\u5236\u5668\u529f\u80fd\u548c\u6027\u80fd;<\/li>\n
\u3000\u3000• \u9009\u62e9\u6700\u4f73\u7684\u5b58\u50a8\u5668\u7c7b\u578b\u6df7\u5408\u65b9\u5f0f—\u5355\u5c42\u5f0f\u5b58\u50a8(SLC)\u548c\u591a\u5c42\u5f0f\u5b58\u50a8(MLC);<\/li>\n
\u3000\u3000• \u9009\u7528\u975e\u6613\u5931\u6027\u5b58\u50a8\u5668;\u4ee5\u53ca<\/li>\n
\u3000\u3000• \u9009\u7528\u5185\u90e8\u4e92\u8054\u6280\u672f\uff0c\u6bd4\u5982PCIe\u3002<\/li>\n
\u3000\u3000\u884c\u4e1a\u5185\u7684“\u6b8a\u9014\u540c\u5f52”<\/li>\n<\/ul>\n
\u3000\u3000\u4e1a\u5185\u5df2\u7ecf\u5c06PCIe(\u603b\u7ebf\u548c\u63a5\u53e3\u6807\u51c6)\u4f5c\u4e3a\u7edf\u4e00\u7684\u5185\u90e8\u4e92\u8054\u6280\u672f\u7528\u4e8e\u4f01\u4e1aSSD(\u56fa\u6001 \u786c\u76d8<\/a>)\u7684\u5e94\u7528\u7a0b\u5e8f\u4e86\u3002\u4e8b\u5b9e\u4e0a\uff0c\u7531\u884c\u4e1a\u9886\u5934\u4f01\u4e1a\u7ed3\u6210\u7684\u5c0f\u7ec4\u5728\u5e74\u521d\u5df2\u7ecf\u901a\u8fc7\u4e86\u4e00\u9879\u540d\u4e3aNVMExpress\u6216NVMe\u7684\u89c4\u8303\uff0c\u8be5\u89c4\u8303\u4e2d\u9009\u62e9PCIe\u4f5c\u4e3a\u5185\u90e8\u4e92\u8054\u6280\u672f\u6765\u63d0\u4f9b\u514b\u670d\u4e0a\u8ff0\u6311\u6218\u6240\u9700\u7684\u6027\u80fd\u3002<\/p>\n
\u3000 \u3000\u6b64\u5916\uff0c\u4e00\u4e2a\u753110\u540d\u6210\u5458\u7ec4\u6210\u7684\u59d4\u5458\u4f1a\u5df2\u7ecf\u5f00\u59cb\u7740\u624b\u5236\u5b9a\u4e00\u9879\u57fa\u4e8e PCIe(SOP)\u7684SCSI\u534f\u8bae\uff0c \u4ee5\u4fbf\u5145\u5206\u5229\u7528PCIe\u7684\u6280\u672f\u4f18\u52bf\u3002\u4e0d\u4ec5\u5982\u6b64\uff0c\u53e6\u5916\u4e00\u4e2a\u7531\u5b58\u50a8\u884c\u4e1a\u9886\u5934\u4eba\u7ec4\u6210\u7684\u56e2\u4f53\u4e5f\u4e8e\u8fd1\u671f\u5ba3\u79f0\uff0c\u4ed6\u4eec\u5c06\u5728\u4e0b\u4e00\u4ee3SATA\u89c4\u8303\uff0c\u5373SATAExpress\u4e2d \u4f7f\u7528PCIe\u4f5c\u4e3a\u5185\u90e8\u4e92\u8054\u6807\u51c6\u3002<\/p>\n
\u3000\u3000\u884c\u4e1a\u8fbe\u6210\u6b64\u79cd\u4e00\u81f4\u7684\u539f\u56e0\u5728\u4e8e\uff0c\u73b0\u5728\u7684PCIe\u5185\u90e8\u4e92\u8054\u6807\u51c6\u9002\u7528\u4e8e\u6240\u6709\u4e3b\u6d41\u7684 CPU<\/a>\u8bbe\u5907\uff0c\u56e0\u6b64\u5728\u5177\u5907\u5e7f\u6cdb\u5b9e\u7528\u6027\uff0c\u66f4\u77ed\u7684\u5ef6\u8fdf\u3001\u66f4\u4f4e\u6210\u672c\u7684\u540c\u65f6\uff0c\u8fd8\u80fd\u63d0\u4f9b\u6240\u6709\u5fc5\u8981\u7684\u6027\u80fd\u3002\u5e76\u4e14\uff0c\u901a\u8fc7PCIe\u4e3b\u673a\u63a5\u53e3\uff0c\u6240\u6709IO\u63a7\u5236\u8bbe\u5907\uff0c\u5982SASA\u3001\u5149\u7ea4\u901a\u9053(FC)\u548c\u4ee5\u592a\u7f51\u7684\u5e7f\u6cdb\u5b9e\u7528\u6027\u4e5f\u5bf9\u52a9\u63a8\u4e86\u8fd9\u79cd“\u540c\u5f52”\u8d8b\u52bf\u3002<\/p>\n
\u3000\u670d\u52a1\u5668<\/a>SSD\u6a21\u5757\u4e2d\u7684PCIe<\/strong><\/p>\n
\u3000 \u3000\u8fc7\u53bb\uff0c\u4f01\u4e1aSSD\u6a21\u5757\u88c5\u8f7d\u7684\u90fd\u662fSAS\u3001SATA\u548cFC\u63a5\u53e3\u3002\u4f46\u662f\u6700\u8fd1\uff0c\u7edd\u5927\u90e8\u5206\u7684\u63d0\u4f9b\u5546\u90fd\u5df2\u7ecf\u63a8\u51fa\u4e86\u914d\u6709PCIe\u63a5\u53e3\u7684\u4ea7\u54c1\u3002\u5927\u591a\u6570SSD\u63a7\u5236\u5668\u9760\u8d1f \u8f7d\u5927\u91cfNVM\u529f\u80fd\u6765\u8fbe\u5230\u5176\u6027\u80fd\u548c\u5bb9\u91cf\u7684\u5cf0\u503c\uff0c\u5982\u8bfb\/\u5199\u529f\u80fd\u3001\u5783\u573e\u6536\u96c6\u3001\u635f\u8017\u5747\u8861\u3001\u9519\u8bef\u6821\u6b63\u3001\u5143\u6570\u636e\u548c\u7ba1\u7406\u3002\u5728\u9ad8\u6027\u80fd\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u8bbe\u8ba1\u8005\u4eec\u4f7f\u7528PCIe\u4ea4\u6362 \u5668\u6765\u63d0\u9ad8SSD\u63a7\u5236\u5668(\u6216 ASIC)\u7684\u6027\u80fd\u548c\u5bb9\u91cf\u3002\u751a\u81f3\u914d\u6709\u591a\u8fbe8\u4e2aASICs\u7684SSD\u6a21\u5757\u5df2\u7ecf\u5728\u5e02\u573a\u51fa\u73b0\u4e86\u3002<\/p>\n
\u3000\u3000\u9009\u62e9PCIe \u4ea4\u6362\u673a<\/a>\u7684 \u65f6\u5019\uff0c\u8bbe\u8ba1\u8005\u4eec\u4e00\u5b9a\u8981\u786e\u4fdd\u6bcf\u4e2a\u7aef\u53e3\u6709\u8db3\u591f\u7684\u5185\u90e8\u6570\u636e\u5305\u7f13\u5b58\uff0c\u4ee5\u53ca\u80fd\u5e94\u5bf9\u4efb\u4f55\u6d41\u91cf\u9aa4\u589e\u60c5\u51b5\u7684\u666e\u901a\u7f13\u5b58\u3002\u6b64\u5916\uff0c\u4ea4\u6362\u5668\u7684\u4e3b\u8fdb\u7a0b\u7aef\u5fc5\u987b\u6709\u8db3\u591f\u7684\u5e26\u5bbd\uff0c\u8fd9\u6837\u624d\u80fd\u4ece \u591a\u4e2aSSD ASICs\u90a3\u91cc\u5f97\u5230\u6216\u8005\u7ed9\u5b83\u4eec\u63d0\u4f9b\u805a\u5408\u6d41\u91cf\u3002\u56fe1a\u8868\u793a\u7684\u662fPCIe\u4ea4\u6362\u5668\u5d4c\u5165SSD\u5185\u63d2\u5361(\u53ef\u5e94\u7528\u4e8e\u4efb\u4f55\u5361\u6216\u6a21\u5757\u5f62\u72b6\u7cfb\u6570)\u65f6\u7684\u4e00\u4e2a\u57fa\u672c\u7528\u6cd5\u3002\u4e00\u822c\u6765 \u8bb2\uff0c\u5f88\u591a\u8fd9\u6837\u7684\u6a21\u5757\u5c06\u88ab\u88c5\u5165\u57fa\u67b6 \u670d\u52a1\u5668<\/a>\u5e95\u677f\u7684PCIe\u63d2\u69fd\u3002\u4e00\u4e9b\u5e95\u677f\u8bbe\u8ba1\u53ef\u80fd\u9700\u8981\u989d\u5916\u7684PCIe\u7aef\u53e3\uff0c\u8fd9\u79cd\u7aef\u53e3\u53ef\u7531PCIe\u4ea4\u6362\u5668\u901a\u8fc7 CPU<\/a>\u7684\u4e00\u4e2a\u6247\u51fa\u7aef\u53e3\u63d0\u4f9b(\u56fe1b)\u3002<\/p>\n

\u56fe1a<\/p>\n

\u56fe 1b<\/p>\n
SSD I\/O\u6269\u5c55\u76d2\u4e2d\u7684PCIe<\/strong><\/p>\n
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\u3000\u3000PCIe \u4ea4\u6362\u673a<\/a>\u751f\u4ea7\u5546\u7684\u4ea7\u54c1\uff0c\u6bd4\u5982\u50cfPLX \u6280\u672f\u516c\u53f8\uff0c\u90fd\u652f\u6301\u975e\u900f\u660e(NT)\u7aef\u53e3\uff0c\u5141\u8bb8\u4e8c\u7ea7 \u670d\u52a1\u5668<\/a>\u8fde \u63a5\u5230IO\u6269\u5c55\u76d2\u7684\u540c\u65f6\uff0c\u8fd8\u80fd\u4e0e\u5e38\u89c4\u7684\u6570\u636e\u4ea4\u6613\u5206\u79bb\u5f00\u6765\u3002\u800c\u4e14\uff0c\u5373\u4f7f\u4e3b\u670d\u52a1\u5668\u51fa\u73b0\u6545\u969c\uff0c\u4e8c\u7ea7\u670d\u52a1\u5668\u4e5f\u80fd\u63a5\u7ba1IO\u76d2\uff0c\u5b9e\u73b0\u6570\u636e\u7684\u5168\u8bfb\u53d6(\u56feFigure 2)\u3002\u8fd8\u80fd\u8fdb\u4e00\u6b65\u6269\u5c55NT\u529f\u80fd\uff0c\u8ba9\u5b83\u4e3a\u9ad8\u5b9e\u7528\u6027\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u4ea4\u6362\u5668\u5149\u7ea4\u6216SSD\u9635\u5217\u5197\u4f59\u3002\u7cfb\u7edf\u8bbe\u8ba1\u8005\u5e94\u8be5\u6ce8\u610f\u5230\uff0c\u94dc\u7ebf\u6216\u5149\u7ea4\u901a\u9053\u5747\u53ef\u7528\u6765\u5efa\u7acb\u670d\u52a1\u5668\u548cIO \u76d2\u4e4b\u95f4\u7684PCIe\u94fe\u63a5\u3002<\/p>\n

\u56fe 2<\/p>\n
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\u56fe 3<\/p>\n
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