c#小白遇到瓶頸-有解無憂

作業2 怎么做，實在找不到思路目前只學到if 布爾運算式這個階段感覺思路很難找想著使用if來判斷是幾位數[如a<9999&& a>10000]，但判斷晚之后不知道如何用個十百千萬逐個表明并輸出[格式個位數是x，十位數是x........]，有沒有大神懂

uj5u.com熱心網友回復：

static void Main(string[] args)
        {
            up:
            Console.WriteLine("請輸入需要判斷的整數");
            int a = Convert.ToInt32(Console.ReadLine());
            int wan = 0;
            int qian = 0;
            int bai = 0;
            int shi = 0;
            int ge = 0;
            if (a<0||a>99999)
            {
                Console.WriteLine("輸入錯誤，請重新輸入");
                goto up;
            }
            else if (a < 100000 && a >= 0)
            {
                if (a/10000>0)
                {
                    Console.WriteLine("數值a的萬位是"+a/10000);
                    wan = a / 10000;
                    qian = (a - wan * 10000) / 1000;
                    bai = (a - wan * 10000 - qian * 1000) / 100;
                    shi = (a - wan * 10000 - qian * 1000 - bai * 100) / 10;
                    ge = a - wan * 10000 - qian * 1000 - bai * 100 - shi * 10;
                    Console.WriteLine("萬位是"+wan +" 千位是"+qian+" 百位是"+bai+" 十位是"+shi+" 個位是"+ge);
                }
                else if(a/10000==0&&a/1000>0)
                {
                    qian = a / 1000;
                    bai = (a - qian * 1000) / 100;
                    shi = (a - qian * 1000 - bai * 100) / 10;
                    ge = a - qian * 1000 - bai * 100 - shi * 10;
                    Console.WriteLine("千位是" + qian + " 百位是" + bai + " 十位是" + shi + " 個位是" + ge);
                }
                else if (a / 10000 == 0 && a / 1000 == 0&&a/100>0)
                {
                    bai = a / 100;
                    shi = (a - bai * 100) / 10;
                    ge = a -  bai * 100 - shi * 10;
                    Console.WriteLine("百位是" + bai + " 十位是" + shi + " 個位是" + ge);
                }
                else if(a / 10000 == 0 && a / 1000 == 0 && a / 100 ==0&&(a/10>0))
                {
                    shi = a / 10;
                    ge = a- shi * 10;
                    Console.WriteLine("十位是" + shi + " 個位是" + ge);
                }
                else
                {
                    ge = a;
                    Console.WriteLine("個位是" + ge);
                }
            }
            Console.ReadKey();
        }

uj5u.com熱心網友回復：

參考 1 樓 jf1125jh的回復:

static void Main(string[] args)
        {
            up:
            Console.WriteLine("請輸入需要判斷的整數");
            int a = Convert.ToInt32(Console.ReadLine());
            int wan = 0;
            int qian = 0;
            int bai = 0;
            int shi = 0;
            int ge = 0;
            if (a<0||a>99999)
            {
                Console.WriteLine("輸入錯誤，請重新輸入");
                goto up;
            }
            else if (a < 100000 && a >= 0)
            {
                if (a/10000>0)
                {
                    Console.WriteLine("數值a的萬位是"+a/10000);
                    wan = a / 10000;
                    qian = (a - wan * 10000) / 1000;
                    bai = (a - wan * 10000 - qian * 1000) / 100;
                    shi = (a - wan * 10000 - qian * 1000 - bai * 100) / 10;
                    ge = a - wan * 10000 - qian * 1000 - bai * 100 - shi * 10;
                    Console.WriteLine("萬位是"+wan +" 千位是"+qian+" 百位是"+bai+" 十位是"+shi+" 個位是"+ge);
                }
                else if(a/10000==0&&a/1000>0)
                {
                    qian = a / 1000;
                    bai = (a - qian * 1000) / 100;
                    shi = (a - qian * 1000 - bai * 100) / 10;
                    ge = a - qian * 1000 - bai * 100 - shi * 10;
                    Console.WriteLine("千位是" + qian + " 百位是" + bai + " 十位是" + shi + " 個位是" + ge);
                }
                else if (a / 10000 == 0 && a / 1000 == 0&&a/100>0)
                {
                    bai = a / 100;
                    shi = (a - bai * 100) / 10;
                    ge = a -  bai * 100 - shi * 10;
                    Console.WriteLine("百位是" + bai + " 十位是" + shi + " 個位是" + ge);
                }
                else if(a / 10000 == 0 && a / 1000 == 0 && a / 100 ==0&&(a/10>0))
                {
                    shi = a / 10;
                    ge = a- shi * 10;
                    Console.WriteLine("十位是" + shi + " 個位是" + ge);
                }
                else
                {
                    ge = a;
                    Console.WriteLine("個位是" + ge);
                }
            }
            Console.ReadKey();
        }

多謝老哥，一眼看懂，很簡單明了的代碼，又有識訓，感謝

uj5u.com熱心網友回復：

參考 2 樓 AFCxiaobai 的回復：

Quote: 參考 1 樓 jf1125jh的回復:
static void Main(string[] args)
        {
            up:
            Console.WriteLine("請輸入需要判斷的整數");
            int a = Convert.ToInt32(Console.ReadLine());
            int wan = 0;
            int qian = 0;
            int bai = 0;
            int shi = 0;
            int ge = 0;
            if (a<0||a>99999)
            {
                Console.WriteLine("輸入錯誤，請重新輸入");
                goto up;
            }
            else if (a < 100000 && a >= 0)
            {
                if (a/10000>0)
                {
                    Console.WriteLine("數值a的萬位是"+a/10000);
                    wan = a / 10000;
                    qian = (a - wan * 10000) / 1000;
                    bai = (a - wan * 10000 - qian * 1000) / 100;
                    shi = (a - wan * 10000 - qian * 1000 - bai * 100) / 10;
                    ge = a - wan * 10000 - qian * 1000 - bai * 100 - shi * 10;
                    Console.WriteLine("萬位是"+wan +" 千位是"+qian+" 百位是"+bai+" 十位是"+shi+" 個位是"+ge);
                }
                else if(a/10000==0&&a/1000>0)
                {
                    qian = a / 1000;
                    bai = (a - qian * 1000) / 100;
                    shi = (a - qian * 1000 - bai * 100) / 10;
                    ge = a - qian * 1000 - bai * 100 - shi * 10;
                    Console.WriteLine("千位是" + qian + " 百位是" + bai + " 十位是" + shi + " 個位是" + ge);
                }
                else if (a / 10000 == 0 && a / 1000 == 0&&a/100>0)
                {
                    bai = a / 100;
                    shi = (a - bai * 100) / 10;
                    ge = a -  bai * 100 - shi * 10;
                    Console.WriteLine("百位是" + bai + " 十位是" + shi + " 個位是" + ge);
                }
                else if(a / 10000 == 0 && a / 1000 == 0 && a / 100 ==0&&(a/10>0))
                {
                    shi = a / 10;
                    ge = a- shi * 10;
                    Console.WriteLine("十位是" + shi + " 個位是" + ge);
                }
                else
                {
                    ge = a;
                    Console.WriteLine("個位是" + ge);
                }
            }
            Console.ReadKey();
        }

多謝老哥，一眼看懂，很簡單明了的代碼，又有識訓，感謝

話說你是培訓班學還是網課自學啊

uj5u.com熱心網友回復：

樓上實在是不簡單明了……
ToString再.Length來判斷位數和取某一位比較好

遇到瓶頸，可能是因為你在室內，劫雷打不到你，到室外渡劫就行了

uj5u.com熱心網友回復：

            int input = -1;
            bool input_flag = false;
            while(input < 0 || input > 99999)
            {
                string tips = input_flag==false ? "請輸入0--99999之間的數字：" : "輸入資料錯誤，請重新輸入0--99999之間的數字：";
                Console.WriteLine(tips);
                try
                {
                    input_flag = true;
                    input = Convert.ToInt32(Console.ReadLine());
                }
                catch
                {
                    input = -1;
                }
            }
            int bit_counter = input.ToString().Length;
            string[] head = new string[] { "個位是：", "十位是：", "百位是：", "千位是：", "萬位是：" };
            int chushu = 1;
            for(int i=0;i<bit_counter;i++)
            {
                int data = input / chushu %10;     //
                chushu *= 10;    //用于計算下一位
                Console.WriteLine("{0}{1}", head[i], data);
            }

uj5u.com熱心網友回復：

參考 5 樓 WQR1994 的回復：

樓上實在是不簡單明了……
ToString再.Length來判斷位數和取某一位比較好

遇到瓶頸，可能是因為你在室內，劫雷打不到你，到室外渡劫就行了

人家都說了，只學了if以及布爾運算式。后面還沒學來著，你用的這些人家都還不知道呢

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標籤：C#

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