switch语句中有多种情况
问题描述:
有没有一种方法可以遍历多个case语句而不重复声明 case value:
?
Is there a way to fall through multiple case statements without stating case value:
repeatedly?
我知道可行:
switch (value)
{
case 1:
case 2:
case 3:
// Do some stuff
break;
case 4:
case 5:
case 6:
// Do some different stuff
break;
default:
// Default stuff
break;
}
但我想这样做:
switch (value)
{
case 1,2,3:
// Do something
break;
case 4,5,6:
// Do something
break;
default:
// Do the Default
break;
}
我是从其他语言考虑这种语法吗?
Is this syntax I'm thinking of from a different language, or am I missing something?
答
您提到的第二种方法在C ++和C#中都没有语法。
There is no syntax in C++ nor C# for the second method you mentioned.
第一种方法没有错。但是,如果范围很大,则只需使用一系列if语句。
There's nothing wrong with your first method. If however you have very big ranges, just use a series of if statements.