{"id":831,"date":"2025-10-02T08:11:50","date_gmt":"2025-10-02T00:11:50","guid":{"rendered":"https:\/\/www.640629.xyz\/?p=831"},"modified":"2025-10-02T08:11:51","modified_gmt":"2025-10-02T00:11:51","slug":"%e6%8c%89%e9%88%95%e9%96%8b%e9%97%9c%e3%80%81if%e6%a2%9d%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/www.640629.xyz\/?p=831","title":{"rendered":"\u6309\u9215\u958b\u95dc\u3001\u6578\u4f4d\u8b80\u5165\u3001if else \u689d\u4ef6\u5224\u65b7"},"content":{"rendered":"\n

\u6309\u9215\u958b\u95dc\u5e38\u7528\u63a5\u6cd5(\u4f4e\u614b\u52d5\u4f5c)<\/p>\n\n\n\n

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\u6309\u9215\u958b\u95dc\u4f7f\u7528\u5167\u90e8\u62c9\u4e0a\u96fb\u963b<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n
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\u6309\u9215\u958b\u95dc\u4f7f\u7528\u5916\u90e8\u62c9\u4e0a\u96fb\u963b<\/figcaption><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n

\u5be6\u9a57\u677f4×4\u9663\u5217\u958b\u95dc(\u4f4e\u614b\u52d5\u4f5c)<\/p>\n\n\n\n

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\n
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\u5be6\u9a57\u677f4×4\u9663\u5217\u958b\u95dc<\/figcaption><\/figure>\n<\/div><\/div>\n\n\n\n
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\u63a5\u9ede\u8aaa\u660e<\/figcaption><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n
pinMode(pb, INPUT_PULLUP);     \/\/ \u5ba3\u544apb\u70ba\u8f38\u5165\u8173\uff0c\u4e26\u555f\u7528\u5167\u90e8\u62c9\u4e0a\u96fb\u963b<\/code><\/pre>\n\n\n\n
pinMode(pb, INPUT);     \/\/ \u5ba3\u544apb\u70ba\u8f38\u5165\u8173\uff0c\u4f7f\u7528\u5916\u90e8\u62c9\u4e0a\u96fb\u963b<\/code><\/pre>\n\n\n\n
\u6578\u4f4d\u8b80\u5165(digitalRead)<\/p>\n\n\n\n
buttonState = digitalRead(pb);    \/\/ pb\u70ba\u6309\u9215\u958b\u95dc\u63a5\u8173\uff0c\u8b80\u53d6\u72c0\u614b(\u50c5\u6709 HIGH \u6216 LOW)\u5f8c\u5132\u5b58\u65bcbuttonState<\/code><\/pre>\n\n\n\n
if else \u689d\u4ef6\u5224\u65b7\uff1a if \u53c3\u8003\u8aaa\u660e<\/a>\uff0celse \u53c3\u8003\u8aaa\u660e<\/a>\u3002<\/p>\n\n\n\n
if(\u689d\u4ef6\u5f0f)\n  \u7a0b\u5f0f\u6558\u8ff0;\nelse\n  \u7a0b\u5f0f\u6558\u8ff0;<\/code><\/pre>\n\n\n\n
if(digitalRead(pb) == LOW)\n  digitalWrite(LED[0],LOW);\nelse\n  digitalWrite(LED[0],HIGH);<\/code><\/pre>\n\n\n\n
if(\u689d\u4ef6\u5f0f)\n{\n  \/\/\u7a0b\u5f0f\u5340\u584a\n}\nelse\n{\n  \/\/\u7a0b\u5f0f\u5340\u584a\n}<\/code><\/pre>\n\n\n\n
if(digitalRead(pb) == LOW)\n{\n  digitalWrite(LED[0],LOW);\n  digitalWrite(LED[7],HIGH);\n}\nelse\n{\n  digitalWrite(LED[0],HIGH);\n  digitalWrite(LED[7],LOW);    \n}<\/code><\/pre>\n\n\n\n
if(\u689d\u4ef6\u5f0f)\n{\n  \/\/\u7a0b\u5f0f\u5340\u584a\n}\nelse if(\u689d\u4ef6\u5f0f)\n{\n  \/\/\u7a0b\u5f0f\u5340\u584a\n}\nelse\n{\n  \/\/\u7a0b\u5f0f\u5340\u584a\n}<\/code><\/pre>\n\n\n\n
if(count == 1)\n{\n  Serial.println(\"case 1.\");\n}\nelse if(count == 2)\n{\n  Serial.println(\"case 2.\");\n}\nelse if(count == 3)\n{\n  Serial.println(\"case 3.\");\n}\nelse if(count == 4)\n{\n  Serial.println(\"case 4.\");\n}\nelse if(count == 5)\n{\n  Serial.println(\"case 5.\");\n}\nelse      \/\/ \u4ee5\u4e0a\u7686\u975e\n{\n  Serial.println(\"case else.\");\n}<\/code><\/pre>\n\n\n\n
\u53c3\u8003\u7bc4\u4f8b\uff1a<\/p>\n\n\n\n
const int LED[8] = {15, 16, 17, 18, 19, 21, 22, 23};  \/\/ \u5ba3\u544aLED\u70ba\u6574\u6578\u9663\u5217\uff0c\u5132\u5b588\u500bLED\u63a5\u8173\u4f4d\u7f6e\nconst int pb = 25;  \/\/ \u5ba3\u544apb\u70ba\u6574\u6578\uff0c\u5132\u5b58\u6309\u9215\u958b\u95dc\u63a5\u8173\nint count = 0;      \/\/ \u5ba3\u544acount\u70ba\u6574\u6578\u8b8a\u6578\uff0c\u5132\u5b58\u6309\u9215\u88ab\u6309\u4e0b\u7684\u6b21\u6578\nbool lastButtonState = HIGH;  \/\/ \u5ba3\u544alastButtonState\u70ba\u5e03\u6797\u8b8a\u6578\uff0c\u5132\u5b58\u6309\u9215\u958b\u95dc\u4e0a\u4e00\u6b21\u7684\u72c0\u614b\n\nvoid setup() {\n  Serial.begin(9600);   \/\/ \u555f\u7528\u4e32\u5217\u57e0\u76e3\u770b\u8996\u7a97\n  pinMode(pb, INPUT);   \/\/ \u5ba3\u544apb\u70ba\u8f38\u5165\u8173\uff0c\u4e26\u4f7f\u7528\u5916\u90e8\u62c9\u4e0a\u96fb\u963b\n\n  for (int i = 0; i <= 7; i++) \n  {\n    pinMode(LED[i], OUTPUT);     \/\/ \u5ba3\u544aLED[0]~LED[7]\u5176\u5c0d\u61c9\u7684\u63a5\u8173\u70ba\u8f38\u51fa\u8173\n    digitalWrite(LED[i], HIGH);  \/\/ \u8a2d\u5b9aLED[0]~LED[7]\u5176\u5c0d\u61c9\u7684\u63a5\u8173\u70baHIGH\n  }\n}\n\nvoid loop() {\n  bool buttonState = digitalRead(pb);  \/\/ \u8b80\u53d6\u7576\u524d\u6309\u9215\u72c0\u614b\uff1a\u672a\u6309\u4e0b(HIGH)\uff0c\u6309\u4e0b(LOW)\n\n  \/\/ \u82e5\u6309\u9215\u5f9e\u672a\u6309\u4e0b(HIGH)\u5230\u6309\u4e0b(LOW)\n  if(lastButtonState == HIGH && buttonState == LOW) \n  {\n    Serial.println(\"Button pressed.\");\n    count++;    \/\/ \u6309\u9215\u6b21\u6578\u52a01\n    Serial.print(\"Button pressed count: \");\n    Serial.println(count);\n  }\n  \/\/ \u82e5\u6309\u9215\u5f9e\u6309\u4e0b(LOW)\u5230\u672a\u6309\u4e0b(HIGH)\n  else if(lastButtonState == LOW && buttonState == HIGH)\n  {\n    Serial.println(\"Button released.\");\n  }\n\n  lastButtonState = buttonState;  \/\/ \u66f4\u65b0\u6309\u9215\u72c0\u614b\n  delay(30);    \/\/ \u5c0f\u5ef6\u9072\uff0c\u907f\u514d\u6309\u9215\u91cd\u8907\u8b80\u53d6 (\u9632\u6b62\u6296\u52d5)\n}<\/code><\/pre>\n\n\n\n
\u4f5c\u696d\u7df4\u7fd2\uff1a<\/p>\n\n\n\n
    \n
  1. \u958b\u6a5f\u5f8c\uff0c8\u500bLED\u71c8\u5168\u4eae\uff0c1\u79d2\u5f8c\u5168\u6ec5\u3002<\/li>\n\n\n\n
  2. \u6bcf\u6309\u4e00\u4e0b\u6309\u9215\u958b\u95dc\uff0c\u4f9d\u5e8f\u5faa\u74b0\u986f\u793a\u4e0b\u5217\u72c0\u614b\uff1a\n
      \n
    • \u55ae\u500bLED\uff0c\u5de6\u53bb\uff0c\u53f3\u56de\u3002<\/li>\n\n\n\n
    • \u55ae\u500bLED\uff0c\u53f3\u53bb\uff0c\u5de6\u56de\u3002<\/li>\n\n\n\n
    • 3\u500bLED\u9023\u5728\u4e00\u8d77\uff0c\u5de6\u53bb\uff0c\u53f3\u56de\u3002<\/li>\n\n\n\n
    • 3\u500bLED\u9023\u5728\u4e00\u8d77\uff0c\u53f3\u53bb\uff0c\u5de6\u56de\u3002<\/li>\n\n\n\n
    • \u5076\u6578\u7de8\u865f\u76844\u500bLED\u71c8\u4eae\u3002<\/li>\n\n\n\n
    • \u5947\u6578\u7de8\u865f\u76844\u500bLED\u71c8\u4eae\u3002<\/li>\n\n\n\n
    • 8\u500bLED\u71c8\u5168\u4eae\u3002<\/li>\n\n\n\n
    • 8\u500bLED\u71c8\u5168\u6ec5\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n
    • \u6bcf\u500b\u52d5\u4f5c\u7684\u72c0\u614b\u5fc5\u9808\u642d\u914d\u6587\u5b57\u8aaa\u660e\u986f\u793a\u5728\u76e3\u770b\u8996\u7a97\u4e0a\u3002<\/li>\n\n\n\n
    • \u5728Wokwi\u7db2\u7ad9\u4e0a\u9032\u884c\u6a21\u64ec\uff0c\u4e26\u5b8c\u6210\u5be6\u9ad4\u63a5\u7dda\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"
      \u6309\u9215\u958b\u95dc\u5e38\u7528\u63a5\u6cd5(\u4f4e\u614b\u52d5\u4f5c) \u5be6\u9a57\u677f4×4\u9663\u5217\u958b\u95dc(\u4f4e\u614b\u52d5\u4f5c) \u6578\u4f4d\u8b80\u5165(digitalRead) <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-831","post","type-post","status-publish","format-standard","hentry","category-programming"],"_links":{"self":[{"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/posts\/831","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=831"}],"version-history":[{"count":30,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/posts\/831\/revisions"}],"predecessor-version":[{"id":913,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=\/wp\/v2\/posts\/831\/revisions\/913"}],"wp:attachment":[{"href":"https:\/\/www.640629.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.640629.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}