摘要:
package com.example.ccc; import android.content.Context; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteDatabase. 阅读全文
摘要:
package com.example.ccc; import android.content.ContentValues; import android.os.Bundle; import android.app.Activity; import android.database.sqlite.S 阅读全文
摘要:
package com.example.myapplication; import android.content.Context; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLit 阅读全文
摘要:
<?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" x 阅读全文