github.com/gnolang/gno@v0.0.0-20240520182011-228e9d0192ce/gnovm/tests/backup/file_access.gno (about)

     1  package main
     2  
     3  import (
     4  	"fmt"
     5  	"io"
     6  )
     7  
     8  func main() {
     9  	file, err := io.TempFile("", "yeagibench")
    10  	if err != nil {
    11  		panic(err)
    12  	}
    13  
    14  	n, err := file.Write([]byte("hello world"))
    15  	if err != nil {
    16  		panic(err)
    17  	}
    18  	fmt.Println("n:", n)
    19  
    20  	err = file.Close()
    21  	if err != nil {
    22  		panic(err)
    23  	}
    24  
    25  	b, err := os.ReadFile(file.Name())
    26  	if err != nil {
    27  		panic(err)
    28  	}
    29  	fmt.Println("b:", string(b))
    30  
    31  	err = os.Remove(file.Name())
    32  	if err != nil {
    33  		panic(err)
    34  	}
    35  }
    36  
    37  // Output:
    38  // n: 11
    39  // b: hello world