C# 如何为字符串赋值并在for循环中计算

我试图给字符串输入中的每个字符赋值，计算总数，然后在标签上显示输出。下面是我如何使用switch实现它的，但是结果仍然显示为“0”。如何解决此错误？ 谢谢代码在C中的单击事件上运行#

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结合评论作为答案

string passport = "ABC123";
char[] array = passport.ToCharArray(0,6);
int total = 0;
foreach (char c in array) { 
    switch (c) // You're doing your switch on passport rather than c. – Loocid 
    {
        case 'A': //Make hardcoded values a type of char(with single quote) otherwise it will not compile. case 'A': – Fabio
            total += 1;
            break;

        case 'B':
            total += 2;
            break;

        case 'C':
            total += 3;
            break;

        case '1':
            total += 1;
            break;

        case '2':
            total += 2;
            break;

        case '3':
            total += 3;
            break;

    }
}
Label1.Text = total.ToString();

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您正在打开

passport

而不是

c

。操作我的坏。谢谢你指出这一点！将硬编码值设置为

char

（带单引号）类型，否则它将无法编译<代码>案例“A”：

string passport = "ABC123";
char[] array = passport.ToCharArray(0,6);
int total = 0;
foreach (char c in array) { 
    switch (c) // You're doing your switch on passport rather than c. – Loocid 
    {
        case 'A': //Make hardcoded values a type of char(with single quote) otherwise it will not compile. case 'A': – Fabio
            total += 1;
            break;

        case 'B':
            total += 2;
            break;

        case 'C':
            total += 3;
            break;

        case '1':
            total += 1;
            break;

        case '2':
            total += 2;
            break;

        case '3':
            total += 3;
            break;

    }
}
Label1.Text = total.ToString();