英文:
Error in opening and writing to a file
问题
我想打开一个文件并向其中写入一些文本，但是我遇到了以下错误：
.\hello.go:13: cannot use msg (type string) as type []byte in argument to f.Write
以下是我目前的代码：
package main
import (
"os"
)
func printer(msg string) (err error) {
f, err := os.Create("helloworld.txt")
if err != nil {
return err
}
defer f.Close()
f.Write(msg)
return err
}
func main() {
printer("Hello World")
}
英文:
I want to open a file and write some text to it, however I get the following error:
.\hello.go:13: cannot use msg (type string) as type []byte in argument to f.Write
Here's my code so far:
package main
import (
"os"
)
func printer(msg string) (err error) {
f, err := os.Create("helloworld.txt")
if err != nil {
return err
}
defer f.Close()
f.Write(msg)
return err
}
func main() {
printer("Hello World")
}
答案1
得分: 5
使用io.WriteString(f, msg)、f.Write([]byte(msg))或io.Copy(f, strings.NewReader(msg))。
英文:
Use io.WriteString(f, msg), f.Write([]byte(msg)) or io.Copy(f, strings.NewReader(msg)).
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