检查目录中是否存在JSON文件- Swift

import Foundation

func checkForJSONFiles(in directoryPath: String) -> Bool {
    let fileManager = FileManager.default
    do {
        let contents = try fileManager.contentsOfDirectory(atPath: directoryPath)
        for file in contents {
            if file.pathExtension == "json" {
                return true
            }
        }
    } catch {
        print("Error reading directory: \(error)")
    }
    return false
}

// 使用示例
let directoryPath = "/path/to/your/directory"
if checkForJSONFiles(in: directoryPath) {
    print("存在JSON文件")
} else {
    print("不存在JSON文件")
}