为什么前一个execsql(sql)语句增加不进去？？？

Question

create table person_data(id integer primary key autoincrement, name text, age integer, gonghao integer);

        String name = "lisi";
        int age = 11;
        int gonghao = 1111;
        ma_db.execSQL("insert into person_data(name, age, gonghao)values(" +name+ "," +age+ "," +gonghao+ ")");
        ma_db.execSQL("insert into person_data(name, age, gonghao)values('lisi', 11, 1111)");

Answer 1

ma_db.execSQL("insert into person_data(name, age, gonghao)values('" +name+ "'," +age+ "," +gonghao+ ")");应该是文本的name少一对单引号