41 lines
1005 B
Go
41 lines
1005 B
Go
package main
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import (
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"bytes"
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"fmt"
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"os"
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"time"
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)
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func main() {
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fmt.Printf("【%+d，%+d】", 0, -0)
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userID := 1001
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action := "登录"
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// 1. fmt.Printf：控制台输出结构化日志
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fmt.Printf("[%s] 用户%d执行%s操作\n",
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time.Now().Format("15:04:05"), userID, action)
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// 2. fmt.Sprintf：生成审计日志字符串
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auditLog := fmt.Sprintf("audit|%d|%s|%s",
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userID, time.Now().Format("2006-01-02"), action)
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fmt.Println("生成审计日志：", auditLog)
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// 3. fmt.Fprintf：写入文件（处理错误）
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file, err := os.Create("operation.log")
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if err != nil {
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fmt.Printf("文件创建失败：%v\n", err)
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return
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}
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defer file.Close() // 确保文件关闭
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fmt.Fprintf(file, "%s - 用户%d %s\n", time.Now(), userID, action)
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// 4. fmt.Fprintf：写入内存缓冲区
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var buf bytes.Buffer
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fmt.Fprintf(&buf, "缓存记录：用户%d的%s操作（时间：%s）",
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userID, action, time.Now().Format("15:04:05"))
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fmt.Println("缓冲区内容：", buf.String())
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}
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