What are the most critical operators in the Go language?

The most important operators in Go language are assignment operators and arithmetic operators.

1. Assignment operator
The assignment operator uses the equal sign (=) to assign the value on the right side to the variable on the left side. It is one of the most basic operators in Go language and is used to assign values ​​to variables.

For example, the following code demonstrates the use of the assignment operator:

package main

import "fmt"

func main() {
    var x int
    x = 10 // 将10赋值给变量x
    fmt.Println(x) // 输出10

    y := 5 // 使用短变量声明方式给变量y赋值
    fmt.Println(y) // 输出5

    z := x + y // 将x+y的结果赋值给变量z
    fmt.Println(z) // 输出15
}

In the above code, we use the assignment operator to assign values ​​to the variables x, y, and z. First, we assign 10 to the variable x, then use a short variable declaration to assign 5 to the variable y, and finally assign the result of x y (15) to the variable z. Finally, we use the fmt.Println function to print out the x, y, and z values.

2. Arithmetic operators
Go language supports various arithmetic operators, including addition operator ( ), subtraction operator (-), multiplication operator (*), division operator (/) and the remainder operator (%).

The following code demonstrates the use of arithmetic operators:

package main

import "fmt"

func main() {
    x := 10
    y := 5

    sum := x + y        // 两数之和
    difference := x - y // 两数之差
    product := x * y    // 两数之积
    quotient := x / y   // 两数相除的商
    remainder := x % y  // 两数相除的余数

    fmt.Println(sum)        // 输出15
    fmt.Println(difference) // 输出5
    fmt.Println(product)    // 输出50
    fmt.Println(quotient)   // 输出2
    fmt.Println(remainder)  // 输出0
}

In the above code, we have used arithmetic operators to perform addition, subtraction, multiplication, division and remainder operations. We assign the sum of two numbers (15), the difference of two numbers (5), the product of two numbers (50), the quotient of dividing two numbers (2) and the remainder of dividing two numbers (0) to sum, respectively. difference, product, quotient and remaining variables. Then, we print out the values ​​of these variables using the fmt.Println function.

Assignment operator and arithmetic operator are one of the most basic and important operators in Go language. They are frequently used when writing Go code and are basic knowledge that developers must master. By understanding and becoming proficient in using these operators, we can better manipulate variables and perform numerical calculations.

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