_N() function, small number of decimal places, precision control

The price calculation is often too precise in the purchase, earnings, account information; this leads to some transactions failing or making mistakes. This problem can be solved very well when using _N in the program. When the accuracy is controlled, the _N does not perform a quadruple entry. _N uses _N (variables to be processed, controlled decimal precision) Returns results after processing

JavaScript

function main() {
    var sell_price=0.1234567;
    Log("sell_price  _N:",_N(sell_price,6));
　　
    var buy_price="0.1234567";
    Log("buy_price  _N:",_N(buy_price,6));
}

Code retested the results of the run:

Python

 def main():
    sell_price=0.1234567
    Log("sell_price  _N:",_N(sell_price,6))
　　
    buy_price="0.1234567"
    Log("buy_price  _N:",_N(float(buy_price),6))

Tip In python, the first parameter _N must be converted to float The code retested the results of the run: