How to use create method in go language

The create method in the Go language refers to the "os.Create" function. The function of this function is to use the specified name to create a new file or truncate an existing file; its usage is: 1. Create a go sample file; 2. Create a new file as "myfile.txt" through the "os.Create("myfile.txt")" syntax; 3. Use the defer statement to close the file.

Operating system for this tutorial: Windows 10 system, go1.20 version, Dell G3 computer

Create a new file in go language The method

"file" is a disk-based file from which Go programs can read or write. In Go, the operating system can be used to represent a file. The os package file type, provides Method to open, read, write and manipulate files.

Using the os.Create command

In this method, the os.Create function uses the specified name To create a new file or truncate an existing file. When the function is finished running, use the defer command to close the file.

Syntax

Os.Create

In the Go programming language, create is part of the os package. This function creates a new file. It contains a parameter, which is the name of the file to be created.

Algorithm

Step 1 – Create a package main, and declare fmt (format package) and os package in the program, where main generates executable code, and fmt helps format input and output.

Step 2 – Use os.Create in the main function to create a new file with the specified name. The function returns both a * file type and an error value.

Step Step 3 – Verify that the error value is zero. Print the error and if it is not zero, exit the function.

Step 4 – When the function has finished running, close the file using a defer statement.

Step 5 – To show that the file has been generated successfully, use the fmt.println() function to print a message, where ln represents a new line.

Example

In this example , we will use the os.Create function to create a new file. Let’s take a look at this code.

package main
import (
   "fmt"
   "os"
)

//create main function to execute the program
func main() {
   file, err := os.Create("myfile.txt")  //create a new file
   if err != nil {
      fmt.Println(err)
      return
   }
   defer file.Close()
   fmt.Println("File is created successfully.")  //print the success on the console
}

Output

File is created successfully.

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