新人对MQL4和MQL5的任何问题，对算法和代码的帮助和讨论 - 页 735

[Aleksandr Bebishev]

Mql5的朋友们，你们能帮我在对冲账户中提出平仓 的请求吗？情况：开了 买入头寸，我们需要用卖出限价来关闭它。问题：我怎样才能正确地写一个请求，准确地关闭所选择的头寸，而不是开新的卖出锁定买入？请写一段带注释的代码!提前感谢您!

[bij]

你好。请给予帮助。

'LastDir' - illegal switch expression type

double LastDir[];
//............... 
switch(LastDir[i]){
                           case 0:
                              if(High[i]>LastHighValue[i]){
                                 LastHighValue[i]=High[i];
                                 LastHighTime[i]=Time[i];
                                 LastDir[i]=1;  
                                 ZZ[i]=High[i];                            
                                 PEACK[i]=High[i];
                              }   
                           break;                            
                           case 1:
                              if(High[i]>LastHighValue[i]){
                                 int lhb=iBarShift(NULL,0,LastHighTime[i],false);
                                 ZZ[lhb]=0;
                                 PEACK[lhb]=0;
                                 LastHighValue[i]=High[i];
                                 LastHighTime[i]=Time[i];
                                 LastDir[i]=1;  
                                 ZZ[i]=High[i];                            
                                 PEACK[i]=High[i];
                              }                           
                           break;
                           case -1:
                              if(High[i]>=LastLowValue[i]+Point*ZZReverse){
                                 LastHighValue[i]=High[i];
                                 LastHighTime[i]=Time[i];
                                 LastDir[i]=1;  
                                 ZZ[i]=High[i]; 
                                 PEACK[i]=High[i];                            
                              }
                        }

[Alekseu Fedotov]

bij:

你好。能否请你帮助我？

开关语句必须是整数类型 的

[bij]

Alekseu Fedotov:

开关语句必须是整数类型 的

但是"LastDir" 是一个缓冲区，它不能是int。

如何摆脱这种情况？

[Alekseu Fedotov]

bij:

但是"LastDir" 是一个缓冲区，它不能是int。

如何摆脱这种情况？

摒弃开关操作员。

与if()操作符一起工作

[bij]

不能确定这是否等同于第一种情况

                       if(LastDir[i]==0)

[bij]

@Alekseu Fedotov，谢谢，可以了）在2009年，开关可以是双倍的)

[[删除]]

bij:
@Alekseu Fedotov，谢谢，可以了）在2009年，开关可以是双倍的)

始终只是一个整体)

[Alexey Viktorov]

bij:

你好。请给予帮助。

如果缓冲区只能包含以双数0.0、1.0和-1.0表示的整数值，我将检查这个选项

double LastDir[];
//............... 
switch((int) LastDir[i]){
                           case 0:
                              if(High[i]>LastHighValue[i]){
                                 LastHighValue[i]=High[i];
                                 LastHighTime[i]=Time[i];
                                 LastDir[i]=1;  
                                 ZZ[i]=High[i];                            
                                 PEACK[i]=High[i];
                              }   
                           break;                            
                           case 1:
                              if(High[i]>LastHighValue[i]){
                                 int lhb=iBarShift(NULL,0,LastHighTime[i],false);
                                 ZZ[lhb]=0;
                                 PEACK[lhb]=0;
                                 LastHighValue[i]=High[i];
                                 LastHighTime[i]=Time[i];
                                 LastDir[i]=1;  
                                 ZZ[i]=High[i];                            
                                 PEACK[i]=High[i];
                              }                           
                           break;
                           case -1:
                              if(High[i]>=LastLowValue[i]+Point*ZZReverse){
                                 LastHighValue[i]=High[i];
                                 LastHighTime[i]=Time[i];
                                 LastDir[i]=1;  
                                 ZZ[i]=High[i]; 
                                 PEACK[i]=High[i];                            
                              }
                        }

此外，我还会把case-1放在case 0之前。

[Artyom Trishkin]

Alexey Viktorov:

如果缓冲区只能包含以双数0.0、1.0和-1.0表示的整数值，我将检查这个选项

此外，我还会把case-1放在case 0之前。

这里-1可能应该被设置为默认值：特别是由于没有默认的情况。

虽然......。你必须是一个作者，才能知道哪一个更适合设置为默认。