What is the operator with the highest precedence in Go language?

In the go language, the operator with the highest precedence is the bracket "()". Parentheses can be used to change the order of operations in an expression so that the part enclosed by the parentheses is evaluated first. The precedence of operators is determined by their associativity and precedence. Associativity refers to the direction in which an operator is evaluated in an expression, which can be from left to right (left associative) or right to left (right associative). Precedence refers to the relative precedence of an operator, with smaller numbers indicating higher precedence.

The operating system for this tutorial: Windows 10 system, go1.20.1 version, Dell G3 computer.

In the Go language, operators are special symbols used to perform various mathematical and logical operations. Each operator has a certain precedence, which determines the order in which they are evaluated in an expression. This article will introduce you to the operators with the highest precedence in the Go language and provide a step-by-step solution.

In the Go language, the operator with the highest precedence is the bracket "()". Parentheses can be used to change the order of operations in an expression so that the part enclosed by the parentheses is evaluated first.

The following is a step-by-step method to determine which operator has the highest precedence in the Go language:

Step 1: Understand the precedence of operators

In In Go language, the precedence of operators is determined by their associativity and precedence. Associativity refers to the direction in which an operator is evaluated in an expression, which can be from left to right (left associative) or right to left (right associative). Precedence refers to the relative precedence of an operator, with smaller numbers indicating higher precedence.

Step 2: Find the operator precedence table

Go language official documentation provides a complete operator precedence table, which you can find in the official documentation. In the operator precedence table, the bracket "()" has the highest precedence.

Step 3: Understand the function of brackets

The function of brackets is to change the order of operations in the expression. When an expression contains multiple operators, parentheses can be used to specify which operators should be evaluated first. The part surrounded by parentheses is evaluated first, and then other operations are performed.

Step 4: Example

The following is an example to illustrate the role and priority of brackets:

Go
a := 5
b := 10
c := 15
result := (a + b) * c
fmt.Println(result)

In the above code, the expression `(a b) * The parentheses in c` are used to specify the calculation order of the addition operator ` `. `a b` in parentheses will first calculate the result 15, then multiply it with the variable `c`, and finally get the result 225.

Step 5: Summary

Through the above steps, we can draw the conclusion: In the Go language, the operator with the highest priority is the bracket "()". Parentheses can be used to change the order of operations in an expression so that the part enclosed by the parentheses is evaluated first.

In short, operators in Go language have different priorities, and parentheses have the highest priority. By using parentheses, you can control the order in which operators in an expression are evaluated. Hope this article can help you understand the precedence of operators in Go language.

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