Question

我正在尝试以下代码：

void OnInit()
{
    int i = 0;
    string d[];
    while(i < 2)
    {
        ArraySetAsSeries(d,true);
        for (int j=0; j<5; j++)
        {
            if(MathMod(j,2)==0 && i==0)
                d[j] = "even";
            else if(MathMod(j,2)==0 )
                d[j] = "even without i zero";
            else
                d[j] = "odd";
        }
        i++;
    }
}

我愿意在测试中获得输出。但我收到以下错误：
2018.03.23 14:51:20.005 EURUSD，M1（MetaQuotes-Demo）：基于真实生成

ticks
2018.03.23 14:51:20.006 EURUSD,M1: testing of Experts\testing lines and trdae.ex5 from 2018.02.01 00:00 to 2018.02.20 00:00 started
2018.03.23 14:51:20.050 2018.02.01 00:00:00   array out of range in 'testing lines and trdae.mq5' (61,2)
2018.03.23 14:51:20.051 OnInit critical error

请帮助我摆脱这个并打印阵列，因为我愿意打印它。

Answer 1

You must explicitely indicate the size of the array before inserting data into it.

Use ArrayResize(d,5); and then it will work.

MQL5错误而不是打印值

1 个答案: