Question

怎么把node.js的bin添加到环境变量

Answer 1

下载node.msi安装文件包，里面包含了node.js和npm；双击node.msi，选择安装路径和npm； 在node的安装的根目录，也就是nodejs文件夹下新建两个名字为node_cache、node_global文件夹 设置环境变量：变量名：NODE_PATH值：D:\Program Files\nodejs\...（火星人）6606

Answer 2

public void onCreateA(SQLiteDatabase db) {

System.out.println("On create works");

try {
db.execSQL("DROP TABLE IF EXISTS actuator;");
db.execSQL("CREATE TABLE IF NOT EXISTS actuator ("+
"ACTUATOR_ID INT(11) NOT NULL,"+
"ACTUATOR_HW_ID int(11) DEFAULT NULL,"+
"DEVICE_NAME TEXT(45) DEFAULT NULL,"+
"DEVICE_TYPE TEXT(45) DEFAULT NULL,"+
"DEVICE_SUB_TYPE TEXT(45) DEFAULT NULL,"+
"LOCATION_ID INT(11) DEFAULT NULL,"+
"STATUES_VALUE REAL DEFAULT NULL,"+
"MAX_STATUES_VALUE REAL DEFAULT NULL,"+
"MIN_STATUES_VALUE REAL DEFAULT NULL,"+
"PRIMARY KEY (`ACTUATOR_ID`))");

System.out.println("table created now values will be added");

System.out.print("DONE!");

} catch (SQLException e) {

System.out.println("table is not created");
}

try {
db.execSQL("INSERT INTO actuator (ACTUATOR_ID, ACTUATOR_HW_ID, DEVICE_NAME, DEVICE_TYPE, DEVICE_SUB_TYPE, LOCATION_ID, STATUES_VALUE, MAX_STATUES_VALUE, MIN_STATUES_VALUE) " +
"VALUES (1, 2, 'Heat Sensor FX615','Heat Sensor', 'Optic Heat Sensor', 4, 6, 7, 8) " );
System.out.println("values are added");
} catch (Exception e) {

e.printStackTrace();
System.out.println("values are not added");
}

try {
db.execSQL("SELECT * FROM actuator");
} catch (SQLException e) {
// TODO Auto-generated catch block