Golang学习防范冠状病毒的自我防护指南

关于在Go项目中集成健康防护信息管理的示例

虽然Go语言本身不直接涉及病毒防护，但我们可以通过构建一个健康信息管理系统来帮助社区成员获取准确的防护知识。以下是一个简单的示例，展示如何使用Go创建一个防护指南的API服务：

package main

import (
    "encoding/json"
    "log"
    "net/http"
    "time"
)

// 防护指南结构体
type ProtectionGuide struct {
    Title       string    `json:"title"`
    Description string    `json:"description"`
    Source      string    `json:"source"`
    CreatedAt   time.Time `json:"created_at"`
    Tips        []string  `json:"tips"`
}

// 存储防护指南的切片
var guides = []ProtectionGuide{
    {
        Title:       "口罩正确使用方法",
        Description: "如何正确佩戴和处理口罩以避免交叉污染",
        Source:      "WHO Guidelines",
        CreatedAt:   time.Now(),
        Tips: []string{
            "佩戴前清洁双手",
            "避免触摸口罩外侧",
            "一次性口罩使用后立即丢弃",
            "摘口罩时只接触耳绳",
        },
    },
    {
        Title:       "手部清洁指南",
        Description: "使用肥皂和水彻底清洁手部的正确步骤",
        Source:      "CDC Recommendations",
        CreatedAt:   time.Now().Add(-24 * time.Hour),
        Tips: []string{
            "使用流动水和肥皂",
            "搓洗至少20秒",
            "清洁手指间和指甲缝",
            "用干净毛巾擦干",
        },
    },
}

// 获取所有防护指南
func getGuides(w http.ResponseWriter, r *http.Request) {
    w.Header().Set("Content-Type", "application/json")
    w.Header().Set("Access-Control-Allow-Origin", "*")
    
    if err := json.NewEncoder(w).Encode(guides); err != nil {
        http.Error(w, err.Error(), http.StatusInternalServerError)
        return
    }
}

// 添加新的防护指南
func addGuide(w http.ResponseWriter, r *http.Request) {
    if r.Method != http.MethodPost {
        http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
        return
    }

    var newGuide ProtectionGuide
    if err := json.NewDecoder(r.Body).Decode(&newGuide); err != nil {
        http.Error(w, err.Error(), http.StatusBadRequest)
        return
    }

    newGuide.CreatedAt = time.Now()
    guides = append(guides, newGuide)

    w.Header().Set("Content-Type", "application/json")
    w.WriteHeader(http.StatusCreated)
    json.NewEncoder(w).Encode(newGuide)
}

// 搜索防护指南
func searchGuides(w http.ResponseWriter, r *http.Request) {
    query := r.URL.Query().Get("q")
    if query == "" {
        http.Error(w, "Search query required", http.StatusBadRequest)
        return
    }

    var results []ProtectionGuide
    for _, guide := range guides {
        if contains(guide.Title, query) || contains(guide.Description, query) {
            results = append(results, guide)
        }
    }

    w.Header().Set("Content-Type", "application/json")
    json.NewEncoder(w).Encode(results)
}

// 简单的字符串包含检查
func contains(s, substr string) bool {
    return len(s) >= len(substr) && (s == substr || len(substr) == 0 ||
        containsHelper(s, substr, 0))
}

func containsHelper(s, substr string, i int) bool {
    if i > len(s)-len(substr) {
        return false
    }
    if s[i:i+len(substr)] == substr {
        return true
    }
    return containsHelper(s, substr, i+1)
}

func main() {
    // 设置路由
    http.HandleFunc("/guides", getGuides)
    http.HandleFunc("/guides/add", addGuide)
    http.HandleFunc("/guides/search", searchGuides)

    // 启动服务器
    log.Println("Starting protection guide server on :8080")
    if err := http.ListenAndServe(":8080", nil); err != nil {
        log.Fatal("Server failed to start:", err)
    }
}

防护信息验证工具示例

以下是一个简单的工具，用于验证防护信息的来源可靠性：

package main

import (
    "fmt"
    "strings"
)

// 可信来源列表
var trustedSources = []string{
    "WHO",
    "CDC",
    "ECDC",
    "国家卫健委",
    "Kurzgesagt",
    "Now This News",
}

// 验证信息来源
func validateSource(source string) (bool, string) {
    source = strings.ToUpper(source)
    for _, trusted := range trustedSources {
        if strings.Contains(source, strings.ToUpper(trusted)) {
            return true, trusted
        }
    }
    return false, ""
}

// 检查信息关键词
func checkInformation(info string) []string {
    var warnings []string
    
    keywords := map[string]string{
        "神奇治愈":      "警惕未经证实的治疗方法",
        "立即见效":      "医疗效果通常需要时间",
        "政府隐瞒":      "请参考官方发布的信息",
        "独家秘方":      "医疗建议应来自专业机构",
    }
    
    infoUpper := strings.ToUpper(info)
    for keyword, warning := range keywords {
        if strings.Contains(infoUpper, strings.ToUpper(keyword)) {
            warnings = append(warnings, warning)
        }
    }
    
    return warnings
}

func main() {
    // 示例使用
    testSources := []string{
        "来自WHO的最新指南",
        "某不知名博客的独家报道",
        "CDC发布的防护建议",
        "社交媒体流传的秘方",
    }
    
    for _, source := range testSources {
        if valid, trusted := validateSource(source); valid {
            fmt.Printf("✓ 来源可靠: %s (可信来源: %s)\n", source, trusted)
        } else {
            fmt.Printf("✗ 来源需核实: %s\n", source)
        }
    }
    
    // 检查信息内容
    info := "这种神奇药物能立即治愈冠状病毒，但政府隐瞒不报"
    warnings := checkInformation(info)
    if len(warnings) > 0 {
        fmt.Printf("\n信息警告:\n")
        for _, warning := range warnings {
            fmt.Printf("⚠ %s\n", warning)
        }
    }
}

个人防护记录跟踪

package main

import (
    "encoding/json"
    "fmt"
    "time"
)

type DailyProtection struct {
    Date        time.Time `json:"date"`
    MaskUsed    bool      `json:"mask_used"`
    HandWash    int       `json:"hand_wash_count"` // 洗手次数
    Temperature float64   `json:"temperature"`     // 体温
    Symptoms    []string  `json:"symptoms"`
}

type ProtectionTracker struct {
    Records []DailyProtection `json:"records"`
}

func (pt *ProtectionTracker) AddRecord(record DailyProtection) {
    record.Date = time.Now()
    pt.Records = append(pt.Records, record)
}

func (pt *ProtectionTracker) WeeklyReport() map[string]interface{} {
    if len(pt.Records) == 0 {
        return nil
    }
    
    var totalWash int
    maskDays := 0
    for _, record := range pt.Records {
        totalWash += record.HandWash
        if record.MaskUsed {
            maskDays++
        }
    }
    
    avgWash := float64(totalWash) / float64(len(pt.Records))
    
    return map[string]interface{}{
        "period_days":      len(pt.Records),
        "avg_handwash":     fmt.Sprintf("%.1f次/天", avgWash),
        "mask_usage_rate":  fmt.Sprintf("%.1f%%", float64(maskDays)/float64(len(pt.Records))*100),
        "start_date":       pt.Records[0].Date.Format("2006-01-02"),
        "end_date":         pt.Records[len(pt.Records)-1].Date.Format("2006-01-02"),
    }
}

func main() {
    tracker := &ProtectionTracker{}
    
    // 添加示例记录
    tracker.AddRecord(DailyProtection{
        MaskUsed:    true,
        HandWash:    8,
        Temperature: 36.5,
        Symptoms:    []string{},
    })
    
    tracker.AddRecord(DailyProtection{
        MaskUsed:    true,
        HandWash:    10,
        Temperature: 36.7,
        Symptoms:    []string{},
    })
    
    // 生成周报
    report := tracker.WeeklyReport()
    if report != nil {
        jsonReport, _ := json.MarshalIndent(report, "", "  ")
        fmt.Println("防护周报:")
        fmt.Println(string(jsonReport))
    }
}

这些示例展示了如何用Go构建与健康防护相关的工具。虽然代码不能直接防止病毒传播，但可以帮助社区成员更好地管理和分享准确的防护信息。