測驗題副本 | JavaScript 程式專案

{"id":81671,"student_id":3232,"content":"// 將每題做成一個功能，在這邊執行\n// 這樣就可以保留你所寫過的所有程式，又不影響操作囉～\n\nf4();\n\n//---------------------------------------------------\nfunction test1() {\n    console.log(10+20+30); //數值+數值\n    console.log('10'+'20'+'30'); //字串+字串\n    console.log(10+'20'); //數值+字串\n}\n//---------------------------------------------------\nfunction test2() {\n    alert(\"提示文字\");\n}\n//---------------------------------------------------\nfunction test3() {\n    var a = prompt(\"提示文字\");\n    console.log(a);\n    console.log(Number(a)); //將字串轉數值，但文字的內容會出錯（NaN=Not a Number）\n}\n//---------------------------------------------------\nfunction a1() {\n    var a1 = prompt(\"輸入名字\");\n    alert(\"hello\"+\" \"+a1);\n}\n//---------------------------------------------------\nfunction a2() {\n    var num1 = Number(prompt(\"輸入數字\"));\n    var num2 = Number(prompt(\"輸入數字\"));\n    var num3 = Number(prompt(\"輸入數字\"));\n    alert(num1+num2+num3);\n}\n//---------------------------------------------------\nfunction a3() {\n    var apple = Number(prompt(\"蘋果顆數\"));\n    var people = Number(prompt(\"人數\"));\n    var a = apple/people;\n    a = Math.floor(a);\n    alert(\"每人分到\"+ a+\"個，剩下\"+apple%people+\"個\");\n}\n//---------------------------------------------------\nfunction a4() {\n    var second = Number(prompt(\"輸入秒數\"));\n    var hour = second/60/60;\n    hour = Math.floor(hour);\n    var minute = second/60%60;\n    minute = Math.floor(minute);\n    second = second%60;\n    alert(hour+\"小時\"+minute+\"分鐘\"+second+\"秒\");\n}\n//---------------------------------------------------\nfunction a5() {\n    var n = Number(prompt(\"輸入數字\"));\n    var t = n/10;\n    t = Math.floor(t);\n    var o = n%10;\n    alert(t + \", \" + o);\n\n}\n//---------------------------------------------------\nfunction a6() {\n    var n = Number(prompt(\"輸入大於十的數字\"));\n    var a = n/10;\n    a = Math.floor(a);\n    a = a%10;\n    alert(a);\n}\n//---------------------------------------------------\nfunction a7() {\n    var a = prompt(\"輸入數字\");\n    var b = prompt(\"輸入數字\");\n    var tmp;\n    tmp = a;\n    a = b;\n    b = tmp;\n    alert(a + \", \" + b);\n}\n//---------------------------------------------------\nfunction b1() {\n    var n = Number(prompt(\"輸入數字\"));\n    if (n%2 == 0) {\n        alert(n + \"是偶數\");\n    } else {\n        alert(n + \"是奇數\");\n    }\n}\n//---------------------------------------------------\nfunction b2() {\n    var num1 = Number(prompt(\"輸入數字\"));\n    var num2 = Number(prompt(\"輸入數字\"));\n    var num3 = Number(prompt(\"輸入數字\"));\n    var num4 = Number(prompt(\"輸入數字\"));\n    var num5 = Number(prompt(\"輸入數字\"));\n    var tmp = num1;\n    if (tmp \u003e num2) {\n        tmp = num2\n    }\n    if (tmp \u003e num3) {\n        tmp = num3\n    }\n    if (tmp \u003e num4) {\n        tmp = num4\n    }\n    if (tmp \u003e num5) {\n        tmp = num5\n    }\n    alert(tmp)\n}\n//---------------------------------------------------\nfunction b3() {\n    var num1 = prompt(\"輸入數字\");\n    var num2 = prompt(\"輸入數字\");\n    var num3 = prompt(\"輸入數字\");\n    var tmp;\n    if (num1 \u003e num2) {\n        tmp = num2;\n        num2 = num1;\n        num1 = tmp;\n    }\n    if (num2 \u003e num3) {\n        tmp = num3;\n        num3 = num2;\n        num2 = tmp;\n    }\n    if (num1 \u003e num2) {\n        tmp = num2;\n        num2 = num1;\n        num1 = tmp;\n    }\n    if (num2 \u003e num3) {\n        tmp = num3;\n        num3 = num2;\n        num2 = tmp;\n    }\n    alert(num1 + \" \" + num2 +  \" \" + num3)\n}\n//---------------------------------------------------\nfunction c1() {\n    var high = Number(prompt(\"輸入身高\"));\n    high = high/100;\n    var weight = Number(prompt(\"輸入體重\"));\n    var BMI = weight/high/high;\n    BMI = Math.round(BMI*100);\n    BMI = BMI/100;\n    var a;\n    if (BMI \u003c 18.5) {\n        a = \"過輕\";\n    } else if (BMI \u003e= 18.5 \u0026\u0026 BMI \u003c 24) {\n        a = \"正常\";\n    } else if (BMI \u003e= 24) {\n        a = \"過重\"\n    }\n\n\n    alert(\"您的BMI:\" + BMI + \",為\" + a);\n}\n//---------------------------------------------------\nfunction d0() {\n    for (var i = 1; i \u003c 11; i++) {\n        console.log(i);\n    }\n}\n//---------------------------------------------------\nfunction d1() {\n    for (var i = 10; i \u003e 0; i--) {\n        console.log(i);\n    }\n}\n//---------------------------------------------------\nfunction d2() {\n    var  a = 20;\n    for (var i = 10; i \u003c a+1; i++) {\n        console.log(i);\n    }\n}\n//---------------------------------------------------\nfunction d3() {\n    var  a = 5;\n    for (var i = 8; i \u003e a-1; i -= 1) {\n        console.log(i);\n    }\n}\n//---------------------------------------------------\nfunction d4(){\n    var a = [1, 2, 3, 4];\n    var b = 0;\n    for(var i = 1; i\u003c6; i++){\n        b = 0;\n        for(var j = 0; j\u003ca.length; j++){\n            if(i == a[j]){\n                b = 1;\n            }\n        }\n        if(b == 0){\n            console.log(i+'沒有');\n        }\n    }\n    \n}\n//---------------------------------------------------\nfunction d5(){\n    var a = 4;\n    var b = \"1\";\n    for(var i = 2; i \u003c a + 1; i++){\n        b += i; \n    }\n    console.log(b);\n}\n//---------------------------------------------------\nfunction d6(){\n    var a = 5;\n    var b = \"1\";\n    for(var i = 2; i \u003c a + 2; i++){\n         console.log(b);\n         b += i;\n    }\n}\n//---------------------------------------------------\nfunction e1(){\n    var n = 1;\n    var a = 50;\n    while(n * n \u003c a){\n        console.log(n*n);\n        n++;\n    }\n}\n//---------------------------------------------------\nfunction f1(){\n    var a = \"kodingschool\";\n    for(var i = 0; i \u003c 6; i++){\n        console.log(a[i]);\n    }\n}\n//---------------------------------------------------\nfunction f2(){\n    var a = \"kodingschool\";\n    for(var i = 11; i \u003e 5; i--){\n        console.log(a[i]);\n    }\n}\n//---------------------------------------------------\nfunction f3(){\n    var a = \"kodingschool\";\n    for(var i = 0; i \u003c 12; i+=2){\n        console.log(a[i]);\n    }\n}\n//---------------------------------------------------\nfunction f4(){\n    var s = '蘋果,橘子,香蕉,芭樂,葡萄,柳橙,西瓜';\n    var arr = s.split(\",\");\n    console.log(arr[Math.floor(Math.random()*7)]);\n}\n//---------------------------------------------------\n\n//---------------------------------------------------","created_at":"2019-07-20T11:14:15.393+08:00","updated_at":"2019-10-26T11:52:12.973+08:00","name":"測驗題 副本","language":"javascript","screenshot":{"url":"https://cdn7.koding.school/uploads/project/screenshot/81671/fd1ac05835b665cf0d7e3c5532c7c2d7.jpg"},"parent_id":73508,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":68,"hashid":"jzmsw5zk","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}