相关疑难解决方法(0)

切换声明是我喜爱switch与if/else if构造的个人主要原因之一.这里有一个例子:

static string NumberToWords(int number)
{
    string[] numbers = new string[] 
        { "", "one", "two", "three", "four", "five", 
          "six", "seven", "eight", "nine" };
    string[] tens = new string[] 
        { "", "", "twenty", "thirty", "forty", "fifty", 
          "sixty", "seventy", "eighty", "ninety" };
    string[] teens = new string[]
        { "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen",
          "sixteen", "seventeen", "eighteen", "nineteen" };

    string ans = "";
    switch (number.ToString().Length)
    {
        case 3:
            ans += string.Format("{0} hundred and ", numbers[number / 100]); …

我正在使用gotoswitch语句的内部来模拟fall through行为.

我的switch语句使用a enum来确定要使用的是哪种情况.当包含该包含的情况goto被执行时,执行在该点挂起,并且托管进程开始使用更多的cpu.

我的代码如下所示:

switch (myEnum)
{
    case HostClass.EnumType.var1: goto case HostClass.EnumType.var2;
    case HostClass.EnumType.var2: myint = 3; break;
    default: break;
}

为什么我的switch语句挂在goto上？在线阅读,这似乎是一种常见的模式.

删除goto修复它,但我不明白为什么.