{"id":52,"date":"2025-07-18T15:31:30","date_gmt":"2025-07-18T07:31:30","guid":{"rendered":"https:\/\/newknow.top\/?p=52"},"modified":"2025-07-20T07:54:30","modified_gmt":"2025-07-19T23:54:30","slug":"51%e5%8d%95%e7%89%87%e6%9c%ba-%e9%9d%99%e6%80%81%e6%95%b0%e7%a0%81%e7%ae%a1%e6%98%be%e7%a4%ba","status":"publish","type":"post","link":"https:\/\/newknow.top\/index.php\/2025\/07\/18\/51%e5%8d%95%e7%89%87%e6%9c%ba-%e9%9d%99%e6%80%81%e6%95%b0%e7%a0%81%e7%ae%a1%e6%98%be%e7%a4%ba\/","title":{"rendered":"51\u5355\u7247\u673a\u2014\u2014\u9759\u6001\u6570\u7801\u7ba1\u663e\u793a"},"content":{"rendered":"\n
#include <REGX52.H>\nunsigned char table[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};\nvoid nixie(unsigned char location,number)\n{\n\tswitch(location)\n\t{\n\t\tcase 1:P2_4=1;P2_3=1;P2_2=1;break;\n\t\tcase 2:P2_4=1;P2_3=1;P2_2=0;break;\n\t\tcase 3:P2_4=1;P2_3=0;P2_2=1;break;\n\t\tcase 4:P2_4=1;P2_3=0;P2_2=0;break;\n\t\tcase 5:P2_4=0;P2_3=1;P2_2=1;break;\n\t\tcase 6:P2_4=0;P2_3=1;P2_2=0;break;\n\t\tcase 7:P2_4=0;P2_3=0;P2_2=1;break;\n\t\tcase 8:P2_4=0;P2_3=0;P2_2=0;break;\n\t}\n\tP0=table[number];\n}\nvoid main()\n{\n\tnixie(1,2);\n\twhile(1)\n\t{\n\t}\n}<\/code><\/pre>\n\n\n\n
\u89e3\u91ca<\/h2>\n\n\n\n
\u8be551\u5355\u7247\u673a\u91c7\u7528\u7684\u662f\u5171\u9634\u6781\u6570\u7801\u7ba1\uff0c\u6240\u4ee5\u6211\u4eec\u7684\u9633\u6781P0\u63a51\u6709\u6548<\/p>\n\n\n\n
\u6211\u4eec\u5f15\u7528\u4e86\u6570\u7ec4table\u6765\u8868\u793a\u6bb5\u7801\uff0ctable[number]\uff0c\u5f53number\u4e3a0\u65f6\u5f15\u75280\u7684\u6bb5\u7801\uff0c1\u7684\u65f6\u5019\u5f15\u75281\u7684\u6bb5\u7801<\/p>\n\n\n\n
\u4f8b\u5982nixie(1,2);\u6307\u7684\u662f\u6570\u7801\u7ba1\u7b2c\u4e00\u4e2a\u4f4d\u7f6e\u663e\u793a2\uff0c\u6211\u4eec\u7531\u56fe\u53ef\u77e5\u663e\u793a2\u7684\u8bdd\u8981\u4f7f\u5f97abdeg\u663e\u793a\uff0c\u5373abdeg\u6bb5\u7801\u8981\u63a51\uff0cP0\u4e3a0x5B(0101 1011)\uff0c\u7b2c\u4e00\u4e2a\u4f4d\u7f6e\u4e3aLED8\u753174HC138\u8bd1\u7801\u5668\u51b3\u5b9a\uff0c\u5373P2_4=1;P2_3=1;P2_2=1<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
74HC245\u82af\u7247<\/h2>\n\n\n\n
74HC245\u82af\u7247\u662f\u4e00\u79cd\u53cc\u5411\u7f13\u51b2\u5668\uff0c\u4e3b\u8981\u7528\u4e8e\u5b9e\u73b0\u4e24\u4e2a\u603b\u7ebf\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u3002\uff08\u572851\u4e2d\u5e38\u5e94\u7528\u4e8e\u70b9\u9635\u5c4f\uff09<\/p>\n\n\n\n
DIR\uff08\u5373\u56fe\u4e2dAB\/BA\u5f15\u811a\uff09\uff1a \u65b9\u5411\u5f15\u811a\uff0c\u63a7\u5236\u6570\u636e\u7684\u4f20\u8f93\u65b9\u5411\u3002\u5f53DIR\u5f15\u811a\u4e3a\u9ad8\u7535\u5e73\u65f6\uff0c\u6570\u636e\u4eceA\u7aef\u4f20\u8f93\u5230B\u7aef\uff1b\u5f53DIR\u5f15\u811a\u4e3a\u4f4e\u7535\u5e73\u65f6\uff0c\u6570\u636e\u4eceB\u7aef\u4f20\u8f93\u5230A\u7aef\u3002
A1-A8\uff1a\u6570\u636e\u4f20\u8f93\u5f15\u811a
B1-B8\uff1a\u6570\u636e\u4f20\u8f93\u5f15\u811a
OE\uff08\u56fe\u4e2dCE\u5f15\u811a\uff09\u9ad8\u7535\u5e73\u65f6\uff0c\u8f93\u51fa\u7aef\u53e3\u5904\u4e8e\u5931\u80fd\u72b6\u6001\uff1bOE\u4e3a\u4f4e\u7535\u5e73\u65f6\uff0c\u8f93\u51fa\u7aef\u53e3\u5904\u4e8e\u4f7f\u80fd\u72b6\u6001\u3002<\/p>\n\n\n\n
\u7248\u6743\u58f0\u660e\uff1a\u672c\u6587\u4e3a\u535a\u4e3b\u539f\u521b\u6587\u7ae0\uff0c\u9075\u5faa CC 4.0 BY-SA \u7248\u6743\u534f\u8bae\uff0c\u8f6c\u8f7d\u8bf7\u9644\u4e0a\u539f\u6587\u51fa\u5904\u94fe\u63a5\u548c\u672c\u58f0\u660e\u3002<\/p>\n\n\n\n
\u539f\u6587\u94fe\u63a5\uff1ahttps:\/\/blog.csdn.net\/m0_74219261\/article\/details\/140001162<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
C51\u5b50\u51fd\u6570<\/h2>\n\n\n\n
\u2022\u5b50\u51fd\u6570\uff1a\u5c06\u5b8c\u6210\u67d0\u4e00\u79cd\u529f\u80fd\u7684\u7a0b\u5e8f\u4ee3\u7801\u5355\u72ec\u62bd\u53d6\u51fa\u6765\u5f62\u6210\u4e00\u4e2a\u6a21\u5757\uff0c\u5728\u5176\u5b83\u51fd\u6570\u4e2d\u53ef\u968f\u65f6\u8c03\u7528\u6b64\u6a21\u5757\uff0c\u4ee5\u8fbe\u5230\u4ee3\u7801\u7684\u590d\u7528\u548c\u4f18\u5316\u7a0b\u5e8f\u7ed3\u6784\u7684\u76ee\u7684\u3001<\/p>\n\n\n\n
void Function(unsigned char x, y)\n\n{\n\n}\n\n\u8fd4\u56de\u503c \u51fd\u6570\u540d\uff08\u5f62\u53c2\uff09\n\n{\n\n  \u51fd\u6570\u4f53\n\n}<\/code><\/pre>\n\n\n\n
C51\u6570\u7ec4<\/h2>\n\n\n\n
\u2022\u6570\u7ec4\uff1a\u628a\u76f8\u540c\u7c7b\u578b\u7684\u4e00\u7cfb\u5217\u6570\u636e\u7edf\u4e00\u7f16\u5236\u5230\u67d0\u4e00\u4e2a\u7ec4\u522b\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u6570\u7ec4\u540d+\u7d22\u5f15\u53f7\u7b80\u5355\u5feb\u6377\u7684\u64cd\u4f5c\u5927\u91cf\u6570\u636e<\/p>\n\n\n\n
int x[3];  \/\/\u5b9a\u4e49\u4e00\u7ec4\u53d8\u91cf\uff083\u4e2a\uff09<\/p>\n\n\n\n
int x[]={1,2,3};  \/\/\u5b9a\u4e49\u4e00\u7ec4\u53d8\u91cf\u5e76\u521d\u59cb\u5316<\/p>\n\n\n\n
x[0]   \/\/\u5f15\u7528\u6570\u7ec4\u7684\u7b2c0\u4e2a\u53d8\u91cf<\/p>\n\n\n\n
x[1]   \/\/\u5f15\u7528\u6570\u7ec4\u7684\u7b2c1\u4e2a\u53d8\u91cf<\/p>\n\n\n\n
x[2]  \/\/\u5f15\u7528\u6570\u7ec4\u7684\u7b2c2\u4e2a\u53d8\u91cf<\/p>\n\n\n\n
\u5f15\u7528x[3]\u65f6\uff0c\u6570\u7ec4\u8d8a\u754c\uff0c\u8bfb\u51fa\u7684\u6570\u503c\u4e0d\u786e\u5b9a\uff0c\u5e94\u907f\u514d\u8fd9\u79cd\u64cd\u4f5c<\/p>\n\n\n\n
\u6570\u7801\u7ba1\u6bb5\u7801\u8868<\/h2>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
switch\u51fd\u6570<\/h2>\n\n\n\n
switch(\u53d8\u91cf)\n{\n    case \u5e38\u91cf1:\u8bed\u53e5\u4f531;break;\n    case \u5e38\u91cf2:\u8bed\u53e5\u4f532;break;\n    (...)\n    default:\u8bed\u53e5\u4f53x;break;\n}\n\n\u5c06\u53d8\u91cf\u4e0ecase\u540e\u7684\u5404\u4e2a\u5e38\u91cf\u5bf9\u6bd4\n\u82e5\u6709\u76f8\u7b49\uff0c\u5219\u6267\u884c\u76f8\u5e94\u7684\u8bed\u53e5\u4f53\n\u82e5\u6ca1\u6709\u4e00\u4e2a\u76f8\u7b49\uff0c\u5219\u6267\u884cdefault\u540e\u7684\u8bed\u53e5\u4f53\n\n(default\u53ef\u4ee5\u4e0d\u5199)\n<\/code><\/pre>\n\n\n\n
C51\u57fa\u672c\u8bed\u53e5<\/h2>\n\n\n\n
\u8bed\u53e5<\/strong><\/td>\u89e3\u91ca<\/strong><\/td>\u8bed\u53e5<\/strong><\/td>\u89e3\u91ca<\/strong><\/td><\/tr>
if(\u903b\u8f91\u8868\u8fbe\u5f0f) {     \u8bed\u53e5\u4f531; } else {     \u8bed\u53e5\u4f532; }<\/td>\u5982\u679c\u903b\u8f91\u8868\u8fbe\u5f0f\u6210\u7acb     \u6267\u884c\u8bed\u53e5\u4f531 \u5426\u5219     \u6267\u884c\u8bed\u53e5\u4f532 (else\u53ef\u4ee5\u4e0d\u5199)<\/td>for(\u521d\u59cb\u5316;\u903b\u8f91\u8868\u8fbe\u5f0f;\u66f4\u6539\u6761\u4ef6) {     \u5faa\u73af\u4f53; }<\/td>\u5148\u6267\u884c\u521d\u59cb\u5316 \u518d\u5224\u65ad\u903b\u8f91\u8868\u8fbe\u5f0f \u82e5\u6210\u7acb\u5219\u6267\u884c\u5faa\u73af\u4f53 \u6267\u884c\u540e\u66f4\u6539\u6761\u4ef6 \u518d\u5224\u65ad\u903b\u8f91\u8868\u8fbe\u5f0f \u76f4\u5230\u8868\u8fbe\u5f0f\u4e0d\u6210\u7acb<\/td><\/tr>
while(\u903b\u8f91\u8868\u8fbe\u5f0f) {     \u5faa\u73af\u4f53; }<\/td>\u5982\u679c\u903b\u8f91\u8868\u8fbe\u5f0f\u6210\u7acb     \u6267\u884c\u5faa\u73af\u4f53 \u6267\u884c\u540e\u518d\u6b21\u5224\u65ad \u82e5\u8fd8\u6210\u7acb\u5219\u7ee7\u7eed\u6267\u884c\u76f4\u5230\u8868\u8fbe\u5f0f\u4e0d\u6210\u7acb<\/td>switch(\u53d8\u91cf) {     case \u5e38\u91cf1:\u8bed\u53e5\u4f531;break;     case \u5e38\u91cf2:\u8bed\u53e5\u4f532;break;     (…)     default:\u8bed\u53e5\u4f53x;break; }<\/td>\u5c06\u53d8\u91cf\u4e0ecase\u540e\u7684\u5404\u4e2a\u5e38\u91cf\u5bf9\u6bd4 \u82e5\u6709\u76f8\u7b49\uff0c\u5219\u6267\u884c\u76f8\u5e94\u7684\u8bed\u53e5\u4f53 \u82e5\u6ca1\u6709\u4e00\u4e2a\u76f8\u7b49\uff0c\u5219\u6267\u884cdefault\u540e\u7684\u8bed\u53e5\u4f53 (default\u53ef\u4ee5\u4e0d\u5199)<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"
\u89e3\u91ca \u8be551\u5355\u7247\u673a\u91c7\u7528\u7684\u662f\u5171\u9634\u6781\u6570\u7801\u7ba1\uff0c\u6240\u4ee5\u6211\u4eec\u7684\u9633\u6781P0\u63a51\u6709\u6548 \u6211\u4eec\u5f15\u7528\u4e86\u6570\u7ec4table\u6765\u8868\u793a\u6bb5\u7801\uff0ctab […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kadence_starter_templates_imported_post":false,"footnotes":""},"categories":[5,4],"tags":[],"class_list":["post-52","post","type-post","status-publish","format-standard","hentry","category-5","category-4"],"_links":{"self":[{"href":"https:\/\/newknow.top\/index.php\/wp-json\/wp\/v2\/posts\/52","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/newknow.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/newknow.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/newknow.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/newknow.top\/index.php\/wp-json\/wp\/v2\/comments?post=52"}],"version-history":[{"count":7,"href":"https:\/\/newknow.top\/index.php\/wp-json\/wp\/v2\/posts\/52\/revisions"}],"predecessor-version":[{"id":76,"href":"https:\/\/newknow.top\/index.php\/wp-json\/wp\/v2\/posts\/52\/revisions\/76"}],"wp:attachment":[{"href":"https:\/\/newknow.top\/index.php\/wp-json\/wp\/v2\/media?parent=52"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/newknow.top\/index.php\/wp-json\/wp\/v2\/categories?post=52"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/newknow.top\/index.php\/wp-json\/wp\/v2\/tags?post=52"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}