The for(;;) operator is a continuous loop, equivalent to the while(1) operator. Each expression 1 or 3 can consist of several expressions combined by a comma operator ','.

The while operator consists of a checked expression and the operator, which must be fulfilled: If the expression is true, the operator is executed until the expression becomes false. If the expression is false, the control is passed to the next operator. The expression value is defined before the operator is executed.

Executing a loop means executing its body. The most common form of the for loop has a single loop variable that controls the number of iterations. In the following example, we calculate the squares of the numbers in the a array. This loop is executed in the following steps: A variable i with an initial value of 0 is created.

2025年3月15日 · MQL5 loop operators help you automate repetitive tasks efficiently. Understanding the differences between for, while, and do-while loops, and knowing when to use break and continue, enables you to write cleaner and more effective trading algorithms.

2020年4月7日 · MQL5中提供了3中循环方式，while, do - while, for。 ## while语句. 这是MQL内最简单的循环句子。判断条件成立，一直执行下去。说的不明白，看例子：

1 天前 · An array in MQL5 is a collection of elements of the same data type (e.g., double, int) stored under one name. You access elements via an index, starting at 0. ... Loop Through Arrays. Loops are a very common way to work with arrays. Because they are sequences of values, looping through them is often necessary. ...

I'm writing a EA for strategy tester purpose only, to evaluate portfolio. So I have hundreads/thousands of trades in an array, with open price and open time, and every 1 minute bar I check in a for loop if there's any trade to open in that minute. And it's taking forever.

A For Loop is often used to count up or down certain values in a loop. And let’s take a look at how this can be done with MQL5. To do this click on this little button here in Metatrader or press the F4 key.

Loop Operator do while. The for and while loops check the termination at the beginning, not at the end of a loop. The third loop operator do - while checks the condition of termination at the end, after each loop iteration. The loop body is always executed at least once.

There are 3 different ways to implement a loop in MQL4 and MQL5, WHILE, DO WHILE, and FOR statement. WHILE and DO WHILE share the same notion of a condition based on an undefined number of iterations contrasting with FOR statement, which is a loop with a specified start and end condition.