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C# 快递费用计算软件 源码

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  • 标      签: C#语言基础

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     switch (aa)            {                case "香港":                    float a;                    a = float.Parse(textBox1.Text);                    // textBox1.Text = a.ToString();                    if (a <= 1)                    {                        label3.Text = "30";                    }                    else if (a > 1)                    {                        float b = a % 1;                        float c = a - b;                        if (b <= 0.5)                        {                            double res;                            if (b == 0)                            {                                 res = (c - 1) * 25 30;                                label3.Text = res.ToString();                            }                            else                            {                                res = (c - 1) * 25 30 12.5;                                label3.Text = res.ToString();                            }                         }                        else if (b > 0.5)                        {                            double res;                            res = c * 25 30;                            label3.Text = res.ToString();                        }                    }                     break;
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