Create a temporary directory using the io/ioutil.TempDir function in the Go language documentation

Use the io/ioutil.TempDir function in the Go language documentation to create a temporary directory. The specific code example is as follows:

package main

import (
    "fmt"
    "io/ioutil"
)

func main() {
    // 创建临时目录
    tempDir, err := ioutil.TempDir("", "example")
    if err != nil {
        fmt.Println("创建临时目录失败:", err)
        return
    }

    defer func() {
        // 删除临时目录
        err := ioutil.RemoveAll(tempDir)
        if err != nil {
            fmt.Println("删除临时目录失败:", err)
        }
    }()

    // 打印临时目录路径
    fmt.Println("临时目录路径:", tempDir)
}

In the above code, we use ## The #ioutil.TempDir function creates a temporary directory. The parameter "" indicates that the temporary directory is created in the system's default temporary directory. The parameter "example" indicates the prefix of the temporary directory. , used to distinguish different temporary directories.

The function that creates a temporary directory returns two values, the first is the path to the temporary directory, and the second is a possible error. We use the

defer statement to delete the temporary directory at the end of the function to ensure that the temporary directory will be cleared correctly after the program is executed.

Finally, we printed the path of the temporary directory for reference. You can use this temporary directory to read and write files according to actual needs.

It should be noted that the

ioutil.RemoveAll function in the code will delete the directory and all its contents, so please use it with caution.

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