方法的返回值

Question

public bool asd()
        {
            int count = 0;
            for (int i = 1; i < 9;i++ )
            {
                if (true)
                {
                    if (count == 0)
                    {
                        if (true)
                        {
                            return true;
                        }
                        else
                        {
                            return true;
                        }
                    }
                     else
                     {
                         return false
                      }
                }
                else
                {
                    if (i > 3)
                    {
                        if (true)
                        {
                            i = 2;
                             return true;
                        }
                        else
                        {
                            return true;
                        }
                    }
                    else
                    {
                        if (true)
                        {
                            return true;
                           }
                        else
                        {
                            return false;
                        }
                    }
                }
            }
        }
以上3个地方没有返回值

Answer 1

public bool asd()
        {
            int count = 0;
            for (int i = 1; i < 9; i++)
            {
                if (count == 0)
                {
                    //if (true)
                    //{
                    //    return true;
                    //}
                    //else
                    //{
                    //    return true;
                    //}
                    return true;
                }
                else
                {
                    if (i > 3)
                    {
                        if (count == 0)
                        {
                            i = 2;
                        }
                        else
                        {
                            return true;
                        }
                    }
                    else
                    {
                        if (count == 0)
                        { }
                        else
                        {
                            return false;
                        }
                    }
                }
            }
        }

Answer 2

这个代码，那个错了public bool asd()
        {
            int count = 0;
            for (int i = 1; i < 9; i++)
            {
                if (count == 0)
                {
                    //if (true)
                    //{
                    //    return true;
                    //}
                    //else
                    //{
                    //    return true;
                    //}
                    return true;
                }
                else
                {
                    if (i > 3)
                    {
                        if (count == 0)
                        {
                            i = 2;
                        }
                        else
                        {
                            return true;
                        }
                    }
                    else
                    {
                        if (count == 0)
                        { }
                        else
                        {
                            return false;
                        }
                    }
                }
            }
        }

Answer 3

if (i > 3)
                    {
                        if (count == 0)
                        {
                            i = 2;      ----这里也没返回
                        }
                        else
                        {
                            return true;
                        }
                    }
                    else
                    {
                        if (count == 0)
                        { } ----这里没返回
                        else
                        {
                            return false;
                        }
                    }

Answer 4

public bool asd()
        {
            int count = 0;
            for (int i = 1; i < 9;i++ )
            {
                if (true)
                {
                    if (count == 0)
                    {
                        if (true)
                        {
                            return true;
                        }
                        else
                        {
                            return true;
                        }
                    }else{//这里需要else并return
                       return true;
                    }
 
                }
                else
                {
                    if (i > 3)
                    {
                        if (true)
                        {
                            i = 2;
                            //这里也需要return
                            return true;
                        }
                        else
                        {
                            return true;
                        }
                    }
                    else
                    {
                        if (true)
                        {
                            //这里也需要return;
                            return true;
                        }
                        else
                        {
                            return false;
                        }
                    }
                }
            }
        }在你的函数有返回值的情况下，请确保无论怎么执行，都能有对应的返回值

Answer 5

public bool asd()
        {
            int count = 0;
            for (int i = 1; i < 9; i++)
            {
                if (count == 0)
                {
                    return true;
                }
                else
                {
                    if (i > 3)
                    {
                        if (count == 0)
                        {
                            i = 2;
                            return true;
                        }
                        else
                        {
                            return true;
                        }
                    }
                    else
                    {
                        if (count == 0)
                        {
                               return true;
                         }
                        else
                        {
                            return false;
                        }
                    }
                }
            }
        }非得要全部写出来？

Answer 6

public bool asd()
        {
            int count = 0;
            for (int i = 1; i < 9; i++)
            {
                if (count == 0)
                {
                    return true;
                }
                else
                {
                    if (i > 3)
                    {
                        if (count == 0)
                        {
                            i = 2;
                            return true;
                        }
                        else
                        {
                            return true;
                        }
                    }
                    else
                    {
                        if (count == 0)
                        {
                               return true;
                         }
                        else
                        {
                            return false;
                        }
                    }
                }
            }
        }这个你试了么 ？ 不对的

Answer 7

嗯，在你for语句块后面加个return true就行了，刚才没注意
public bool asd()
        {
            int count = 0;
            for (int i = 1; i < 9; i++)
            {
                if (count == 0)
                {
                    return true;
                }
                else
                {
                    if (i > 3)
                    {
                        if (count == 0)
                        {
                            i = 2;
                            return true;
                        }
                        else
                        {
                            return true;
                        }
                    }
                    else
                    {
                        if (count == 0)
                        {
                               return true;
                         }
                        else
                        {
                            return false;
                        }
                    }
                }
            }
            return true;       --这里要加个
        }

Answer 8

for外面加一个返回，就解决了

Answer 9

你这个程序，直接写 return true 就完了。人要动脑筋，不要仅仅为了抄别人的代码形式才编程。首先，看到你的第一个 if (true) 代码，那么你就可以把 else {} 部分删除掉了。而且剩下部分的if语句也不需要了。然后，看到 if(count==0）内部的 if(true) 也是一样。最后就剩下了public bool asd()
        {
            int count = 0;
            for (int i = 1; i < 9;i++ )
            {
                    if (count == 0)
                    {
                            return true;
                    }
            }
         }最后你看到，for循环也是多余的，根本没有改变count==0的初始值，因此立刻return，所以你这个程序就剩下了 return true 这一句就行了。

Answer 10

嗯，在你for语句块后面加个return true就行了，刚才没注意
public bool asd()
        {
            int count = 0;
            for (int i = 1; i < 9; i++)
            {
                if (count == 0)
                {
                    return true;
                }
                else
                {
                    if (i > 3)
                    {
                        if (count == 0)
                        {
                            i = 2;
                            return true;
                        }
                        else
                        {
                            return true;
                        }
                    }
                    else
                    {
                        if (count == 0)
                        {
                               return true;
                         }
                        else
                        {
                            return false;
                        }
                    }
                }
            }
            return true;       --这里要加个
        }
good