switch语句出错！无法将类型“int”隐式转换为“bool”

[zhwedo0822]

EvaluationVariable Test = new EvaluationVariable();
                switch (Test.nowNL < 5)
                {
                    case Test.nowNL = 1:
                        Test.ddzjf = Test.nowM;
                        Test.nowNL = Test.nowNL + 1;
                        Session["EvalTest"] = Test;
                        QuBd(day, Test.nowNL);
                        break;
                    case Test.nowNL = 2:
                        Test.jxdzjf = Test.nowM;
                        Test.nowNL = Test.nowNL + 1;
                        Session["EvalTest"] = Test;
                        QuBd(day, Test.nowNL);
                        break;
                    case Test.nowNL = 3:
                        Test.synljf = Test.nowM;
                        Test.nowNL = Test.nowNL + 1;
                        Session["EvalTest"] = Test;
                        QuBd(day, Test.nowNL);
                        break;
                    case Test.nowNL = 4:
                        Test.yyjf = Test.nowM;
                        Test.nowNL = Test.nowNL + 1;
                        Session["EvalTest"] = Test;
                        QuBd(day, Test.nowNL);
                        break;
                }

EvaluationVariable里面所涉及到的函数：

    public int nowNL
    {
        get { return _nowNL; }
        set { _nowNL = value; }
    }private int _nowNL = 0;

大家看看我这个switch 有什么错误？在运行时出错：
编译器错误消息: CS0029: 无法将类型“int”隐式转换为“bool”

源错误:



行 99: switch (Test.nowNL < 5)
行 100: {
行 101: case Test.nowNL = 1:行 102: Test.ddzjf = Test.nowM;
行 103: Test.nowNL = Test.nowNL + 1;

[kingboyrang]

case 1:代码;bredk;
case 2:代码;break;

[龍月]

Test.nowNL < 5 得出来的结果 是 bool 如果 Test.nowNL《5 为true 大于5 为false

[龍月]

Test.nowNL < 5 这个结果是 bool 类型的

[porschev]

如果想判断。。。在switch外加一个if

[liuchanggui]

switch (Test.nowNL)
{
case 1:
Test.ddzjf = Test.nowM;
Test.nowNL = Test.nowNL + 1;
Session["EvalTest"] = Test;
QuBd(day, Test.nowNL);
break;
case 2:
Test.jxdzjf = Test.nowM;
Test.nowNL = Test.nowNL + 1;
Session["EvalTest"] = Test;
QuBd(day, Test.nowNL);
break;
case 3:
Test.synljf = Test.nowM;
Test.nowNL = Test.nowNL + 1;
Session["EvalTest"] = Test;
QuBd(day, Test.nowNL);
break;
case 4:
Test.yyjf = Test.nowM;
Test.nowNL = Test.nowNL + 1;
Session["EvalTest"] = Test;
QuBd(day, Test.nowNL);
break;
}
不是这样写吗?????

[cpp2017]

switch (Test.nowNL)
{
case 1:
{ //代码
break;
}
case 2:
{
//代码
break;
}
default:
{
//代码
break;
}

}