摩斯密碼副本 | 程式專案

{"id":147987,"student_id":2002,"content":"{\"html\":\"\u003c!DOCTYPE html\u003e\\n\u003chtml\u003e\\n\u003chead\u003e\\n\\t\u003ctitle\u003eDocument\u003c/title\u003e\\n\\t\u003clink rel=\\\"stylesheet\\\" href=\\\"https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css\\\" integrity=\\\"sha384-9gVQ4dYFwwWSjIDZnLEWnxCjeSWFphJiwGPXr1jddIhOegiu1FwO5qRGvFXOdJZ4\\\" crossorigin=\\\"anonymous\\\"\u003e\\n\\t\u003cscript src=\\\"https://code.jquery.com/jquery-3.3.1.slim.min.js\\\" integrity=\\\"sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo\\\" crossorigin=\\\"anonymous\\\"\u003e\u003c/script\u003e\\n    \u003cscript src=\\\"https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js\\\" integrity=\\\"sha384-cs/chFZiN24E4KMATLdqdvsezGxaGsi4hLGOzlXwp5UZB1LY//20VyM2taTB4QvJ\\\" crossorigin=\\\"anonymous\\\"\u003e\u003c/script\u003e\\n    \u003cscript src=\\\"https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js\\\" 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'...',\n    T: '-',\n    U: '..-',\n    V: '...-',\n    W: '.--',\n    X: '-..-',\n    Y: '-.--',\n    Z: '--..',\n    a: '.-',\n    b: '-...',\n    c: '-.-.',\n    d: '-..',\n    e: '.',\n    f: '..-.',\n    g: '--.',\n    h: '....',\n    i: '..',\n    j: '.---',\n    k: '-.-',\n    l: '.-..',\n    m: '--',\n    n: '-.',\n    o: '---',\n    p: '.--.',\n    q: '--.-',\n    r: '.-.',\n    s: '...',\n    t: '-',\n    u: '..-',\n    v: '...-',\n    w: '.--',\n    x: '-..-',\n    y: '-.--',\n    z: '--..',\n    1: '.----',\n    2: '..---',\n    3: '...--',\n    4: '....-',\n    5: '.....',\n    6: '-....',\n    7: '--...',\n    8: '---..',\n    9: '----.',\n    0: '-----',\n    '.': '.-.-.-',\n    ':': '---...',\n    ',': '--..--',\n    ';': '-.-.-.',\n    '?': '..--..',\n    '=': '-...-',\n    \"'\": '.----.',\n    '/': '-..-.',\n    '!': '-.-.--',\n    '-': '-....-',\n    '_': '..--.-',\n    '\"': '.-..-.',\n    '(': '-.--.',\n    ')': '-.--.-',\n    '$': '...-..-',\n    '\u0026': '.-...',\n    '@': '.--.-.',\n    '+': '.-.-.'\n}\n\nvar decodeTable = {};\nfor (var key in encodeTable) {\n    decodeTable[encodeTable[key]] = key;\n}\n\nvar audioCtx = new (window.AudioContext || window.webkitAudioContext)();\n\nfunction playNote(frequency, duration) {\n    // create Oscillator node\n    var oscillator = audioCtx.createOscillator();\n\n    oscillator.type = 'square';\n    oscillator.frequency.value = frequency; // value in hertz\n    oscillator.connect(audioCtx.destination);\n    oscillator.start();\n\n    setTimeout(\n        function(){\n            oscillator.stop();\n    }, duration);\n}","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":51,"hashid":"rdvskerp","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}