終極密碼副本 | JavaScript 程式專案

{"id":122055,"student_id":1404,"content":"// 點擊時取得玩家輸入\nwhen('click', function () {\n   guess(prompt('猜 1 ~ 1000 數字？'));\n});\n\n//演算法一（暴力法）\n// for (var i = 1; i \u003c 1001; i++) {\n//     if (guess(i) == 0) {\n//         break;\n//     }\n// }\n\n//演算法二（聰明的二分法）\nvar up = 1000;\nvar down = 1;\nvar g; //這輪猜的數字\nvar result; //這輪回傳的判斷1, -1, 0\nfor (var i = 0; i \u003c 1001; i++) {\n    g = Math.floor((up + down) / 2);\n    result = guess(g);\n    if(result == 1){\n        up = g;\n    }\n    \n    if(result == -1){\n        down = g;\n    }\n    \n    if(result == 0){\n        break;\n    }\n}\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n// // 循環搜尋法\n// for (var i=1; i\u003c1000; i++) {\n//     var result = guess(i);\n//     if (result == 0) break;\n// }\n\n// // 二分搜尋法\n// var up = 1000;\n// var low = 0;\n\n// for (var i=1; i\u003c1000; i++) {\n//     var g = Math.floor((up + low)/2);\n//     var result = guess(g);\n//     if (result == 1) up = g;\n//     if (result == -1) low = g;\n//     if (result == 0) break;\n// }\n","created_at":"2020-01-31T08:34:18.231+08:00","updated_at":"2020-02-01T17:43:16.558+08:00","name":"終極密碼 副本","language":"javascript","screenshot":{"url":"https://cdn1.koding.school/uploads/project/screenshot/122055/89edcce60b8890776f43b51e69f48ea4.jpg"},"parent_id":31718,"plugin":"setBackdrop('black');\n\nvar guess = (function () {\n    var count = 0;\n    var answer = Math.ceil(Math.random()*1000);\n    var recentGuess = '???';\n    var result = '';\n    \n    function guess (num) {\n        count++;\n        recentGuess = num;\n        \n        if (num \u003e answer) {\n            result = '太大了';\n            return 1;\n        }\n        if (num \u003c answer) {\n            result = '太小了';\n            return -1;\n        }\n        if (num == answer) {\n            result = '猜對了';\n            return 0;\n        }\n    }\n    \n    forever(function(){\n        print('猜', 80, 225, 'white', 60);\n        print(recentGuess, 150, 150, 'white', 150);\n        print(result, 410, 225, 'white', 60);\n        print(`猜了 ${count} 次`, 400, 330, 'white', 30);\n    });\n    \n    return guess;\n    \n})();\n\n\n\n\n","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":65,"hashid":"882swngn","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}