GetMeta

Dapatkan nilai Meta ditulis apabila menjana kod pendaftaran strategi.

Metadata. senar

DapatkanMeta

function main() {
    // The maximum asset value of the denominated currency allowed by the strategy.
    var maxBaseCurrency = null
    
    // Get the metadata when creating the registration code.
    var level = GetMeta()
    
    // Detecting the conditions corresponding to Meta.
    if (level == "level1") {
        // -1 for unrestricted
        maxBaseCurrency = -1       
    } else if (level == "level2") {
        maxBaseCurrency = 10     
    } else if (level == "level3") {
        maxBaseCurrency = 1
    } else {
        maxBaseCurrency = 0.5
    }
    
    while(1) {
        Sleep(1000)
        var ticker = exchange.GetTicker()
        
        // Detect asset values
        var acc = exchange.GetAccount()
        if (maxBaseCurrency != -1 && maxBaseCurrency < acc.Stocks + acc.FrozenStocks) {
            // Stop executing strategy trading logic
            LogStatus(_D(), "level:", level, "Positions exceeding the usage limit of the registration code will no longer execute the strategy trading logic!")
            continue
        }
        
        // Other trading logic
        
        // Normal output of status bar information
        LogStatus(_D(), "level:", level, "The strategy is working properly! ticker data: \n", ticker)
    }
}

def main():
    maxBaseCurrency = null
    level = GetMeta()
    
    if level == "level1":
        maxBaseCurrency = -1       
    elif level == "level2":
        maxBaseCurrency = 10     
    elif level == "level3":
        maxBaseCurrency = 1
    else:
        maxBaseCurrency = 0.5
    
    while True:
        Sleep(1000)
        ticker = exchange.GetTicker()        
        acc = exchange.GetAccount()
        if maxBaseCurrency != -1 and maxBaseCurrency < acc["Stocks"] + acc["FrozenStocks"]:
            LogStatus(_D(), "level:", level, "Positions exceeding the usage limit of the registration code will no longer execute the strategy trading logic!")
            continue        
        
        # Other trading logic
        
        # Normal output of status bar information
        LogStatus(_D(), "level:", level, "The strategy is working properly! ticker data: \n", ticker)

void main() {
    auto maxBaseCurrency = 0.0;
    auto level = GetMeta();
    
    if (level == "level1") {
        maxBaseCurrency = -1;  
    } else if (level == "level2") {
        maxBaseCurrency = 10;
    } else if (level == "level3") {
        maxBaseCurrency = 1;
    } else {
        maxBaseCurrency = 0.5;
    }
    
    while(1) {
        Sleep(1000);
        auto ticker = exchange.GetTicker();  
        auto acc = exchange.GetAccount();
        if (maxBaseCurrency != -1 && maxBaseCurrency < acc.Stocks + acc.FrozenStocks) {
            // Stop execution strategy trading logic.
            LogStatus(_D(), "level:", level, "Positions exceeding the usage limit of the registration code will no longer execute the strategy trading logic!");
            continue;
        }
        
        // Other trading logic
        
        // Normal output of status bar information
        LogStatus(_D(), "level:", level, "The strategy is working properly! ticker data: \n", ticker);
    }
}

Contoh senario aplikasi: PenggunaanMetauntuk mengehadkan jumlah aset yang dikendalikan oleh strategi.

Senario permohonan: perlu melakukan had modal untuk penyewa strategi yang berbeza.Metanilai yang ditetapkan apabila menjana kod pendaftaran tidak boleh melebihi 190 aksara danGetMeta()Jika tiada metadata (Meta) ditetapkan semasa menjana kod pendaftaran strategi,GetMeta()fungsi mengembalikan null. Ia tidak berfungsi dalam sistem backtesting.

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