.这里有一个错误不知道那里错了:
using System;
class ThisDemo
{
double e, exp;
public double pwr(double a, double b)
{
e = a;
exp = b;
double result = 1;
for (; exp > -1; exp--)
{
result = result * e;
}
return result;
}
public static void Main()//here static is what meaning;
{
Console.Write("3^4=" + pwr(3, 4));
Console.Read();
}
}
Complier read:
Error 1 An object reference is required for the nonstatic field, method, or property 'ThisDemo.pwr(double, double)' E:\My Documents\Visual Studio 2005\Projects\ConstructorDemo\ConstructorDemo\ThisDemo.cs 18 32 ConstructorDemo
我真的不知道是什么意思.
请问各位大哥,这到底错在哪里?
using System;
class ThisDemo
{
double e, exp;
public double pwr(double a, double b)
{
e = a;
exp = b;
double result = 1;
for (; exp > -1; exp--)
{
result = result * e;
}
return result;
}
public static void Main()//here static is what meaning;
{
Console.Write("3^4=" + pwr(3, 4));
Console.Read();
}
}
Complier read:
Error 1 An object reference is required for the nonstatic field, method, or property 'ThisDemo.pwr(double, double)' E:\My Documents\Visual Studio 2005\Projects\ConstructorDemo\ConstructorDemo\ThisDemo.cs 18 32 ConstructorDemo
我真的不知道是什么意思.
请问各位大哥,这到底错在哪里?
class ThisDemo
{
double e, exp; //你的算法还有些问题,答案不对
public double pwr(double a, double b)
{
e = a;
exp = b;
double result = 1;
for (; exp > -1; exp--)
{
result = result * e;
}
return result;
}
public static void Main()
{
//生成ThisDemo类的一个对象去调用pwr方法
ThisDemo a = new ThisDemo();
Console.Write("3^4=" + a.pwr(3, 4));
Console.Read();
}
}
class ThisDemo
{
//你的算法还有些问题,答案不对
//将pwr该为静态的
public static double pwr(double a, double b)
{
double e, exp;
e = a;
exp = b;
double result = 1;
for (; exp > -1; exp--)
{
result = result * e;
}
return result;
}
public static void Main()
{
//生成ThisDemo类的一个对象去调用pwr方法
Console.Write("3^4=" + pwr(3, 4));
Console.Read();
}
}
我是说这个算法只要把exp>-1 change to exp>0就可以了.
另外关于class method 和 object method小弟也搞清了,
谢谢各位大哥!!!^_^