///1創(chuàng)建不帶參數(shù)的類

class Info {
    
}

///1引用

val info = Info();

///2創(chuàng)建帶參數(shù)的類

data class ApplyInfo(
    val appVersionCode: Int,
    val appVersionName: String,
    val phoneMode: String,
    val androidVersionCode: String,
    val deviceName: String,
    val deviceSN:String = Build.SERIAL
)

///2引用
val info = ApplyInfo(appVersionCode, appVersionName, phoneMode, androidVersionCode, deviceName)