費氏數列 | JavaScript 程式專案

{"id":154697,"student_id":10,"content":"setBackdrop('black');\n\non('click', start); //點擊畫面輸入天數\nforever(loop); //重複不斷執行遊戲回圈\n\nvar text = '';\nvar arr = [0, 1, 1]; //紀錄數列的數字\n\nfunction start () {\n    var day = prompt('天數？');\n    var result = fib(day);\n    text = `經過了 ${day} 天，現在總共有 ${result} 隻兔子！`;\n}\n\nfunction fib (day) {\n    var a = 1;\n    var b = 1;\n    \n    for (var i = 3; i \u003c= day; i++) {\n        var tmp = a + b;\n        a = b;\n        b = tmp;\n        arr[i] = b;\n    }\n\n    return b;\n}\n\n\nfunction loop () {\n    print(text, 100, 50, 'white', 30);\n    \n    for (var i = 1; i \u003c arr.length; i++) {\n        print(`${i} 天，有${arr[i]}隻兔子`, 100, 100 + i*10, 'white', 10);\n    }\n}","created_at":"2020-06-01T17:04:27.242+08:00","updated_at":"2020-06-01T17:19:13.732+08:00","name":"費氏數列","language":"javascript","screenshot":{"url":"https://cdn4.koding.school/uploads/project/screenshot/154697/f4b8ec78780a59c89ac965add4e9bf2a.jpg"},"parent_id":2,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":235,"hashid":"2pds8j84","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}