如何存取数据？

2007-07-02 04:56:15 310 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

Python实战：石头剪刀布游戏本文详细介绍了如何使用 Python 编写一个石头剪刀布游戏。通过学习基础的控制流、用户输入处理、随机数生成等核心知识，并掌握异常处理和用户界面优化，现在可以灵活运用 Python 实现一个完整的石头剪刀布游戏。我们还介绍了如何添加多轮游戏、计分系统等进阶功能，以及如何处理用户输入异常。阅读详情

用户输入的数据需要保存，请问用什么函数可以实现，谢谢

刚接触手机编程，问题很肤浅，见笑了

...全文

Python编写石头剪刀布的游戏用python做猜拳游戏阅读详情

yoci

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切换为时间正序

herooomouse 2007-07-04

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要是怕数据会太多,不如考虑将数据传输到服务器上

yoci 2007-07-03

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RMS中的数据多了会不会影响速度？

「已注销」 2007-07-03

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RMS当然可以长久了，只要手机不坏，软件不删，RMS就一直存在

要想保存成文件也可以，但是需要手机支持JSR75

yoci 2007-07-03

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谢谢各位的帮助，还想问一下如果保存成文件应该怎么样实现
因为数据日积月累会比较多,放在RMS不是长久之计

sisihj 2007-07-03

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RMS占用的内存空间，如何存储空间过大，应该会影响手机性能。不过，RMS能够占用的空间和手机有关。有些手机有限制，如S40。有些则没有限制，只和手机的存储空间相关。

lubin1119 2007-07-02

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import javax.microedition.rms
int i;//record index
byte[] data;//record data
int offset;//record start bit position
int length;//record length (bit)
init data(){
//init data;
}
length = data.length();
RecordStore rs = RecordStore.setRecord(1, data, offset, length); //add a new record

angelleecash 2007-07-02

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class RMS {
static String missionRMS = "MISSION_RMS";
public RMS() {

}
void storeTask(Task task) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(baos);
try {
// write task info
dos.writeInt(task.id);
dos.writeUTF(task.label);
dos.writeUTF(task.description);
dos.writeUTF(task.rewardInfo);
dos.writeInt(task.price);
// write components info
TaskComponent[] taskComponents = task.taskComponents;
int numTaskComponents = taskComponents.length;
dos.writeInt(numTaskComponents);
for (int i = 0; i < numTaskComponents; i++) {
TaskComponent component = taskComponents[i];
NPC npc = component.npc;
// write npc info in this component
dos.writeInt(npc.id);
dos.writeInt(npc.countryID);
dos.writeInt(npc.sex);
dos.writeInt(npc.ai);
dos.writeInt(npc.level);
dos.writeUTF(npc.name);
// component info
dos.writeInt(component.numWinTimes);
dos.writeInt(component.shouldWinSequentially);
}
byte data[] = baos.toByteArray();
RecordStore rs = openRecordStore();
if (rs != null) {
if (rs.getNumRecords() <= 0) {
rs.addRecord(data, 0, data.length);
System.out.println("Adding new record");
} else {
rs.setRecord(1, data, 0, data.length);
System.out.println("updating record");
}
rs.closeRecordStore();
System.out.println("Task saved successfully.");
}
} catch (Exception e) {
e.printStackTrace();
}
}
Task getTask() {
try {
RecordStore rs = openRecordStore();
if (rs == null || rs.getNumRecords() <= 0) {
if (rs != null) {
rs.closeRecordStore();
}
return null;
} else {
byte[] data = rs.getRecord(1);
ByteArrayInputStream bais = new ByteArrayInputStream(data);
DataInputStream dis = new DataInputStream(bais);
int id, price, numComponents;
String label, description, rewardInfo;
TaskComponent[] taskComponents;
id = dis.readInt();
label = dis.readUTF();
description = dis.readUTF();
rewardInfo = dis.readUTF();
price = dis.readInt();
System.out.println("id :" + id);
System.out.println("label :" + label);
System.out.println("description :" + description);
System.out.println("rewardInfo" + rewardInfo);
// components
numComponents = dis.readInt();
taskComponents = new TaskComponent[numComponents];
for (int i = 0; i < numComponents; i++) {
int npcID, npcCountryID, npcSex, npcAI, npcLevel, numWinTimes, shouldWinSequentially;
String npcName;
npcID = dis.readInt();
npcCountryID = dis.readInt();
npcSex = dis.readInt();
npcAI = dis.readInt();
npcLevel = dis.readInt();
npcName = dis.readUTF();
numWinTimes = dis.readInt();
shouldWinSequentially = dis.readInt();
System.out.println("npcID :" + npcID);
System.out.println("npcCountryID :" + npcCountryID);
System.out.println("npcSex :" + npcSex);
System.out.println("npcAI :" + npcAI);
System.out.println("npcLevel :" + npcLevel);
System.out.println("npcName :" + npcName);
System.out.println("numWinTimes :" + numWinTimes);
System.out.println("shouldWinSequentially :" + shouldWinSequentially);
taskComponents[i] = new TaskComponent(new NPC(npcID, npcName, npcCountryID, npcSex, npcAI, npcLevel, null), numWinTimes, shouldWinSequentially);
}
rs.closeRecordStore();
return new Task(0, id, price, label, description, rewardInfo, taskComponents);
}
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
void removeTask() {
try {
RecordStore.deleteRecordStore(missionRMS);
} catch (RecordStoreNotFoundException e) {
e.printStackTrace();
} catch (RecordStoreException e) {
e.printStackTrace();
}
}
RecordStore openRecordStore() {
RecordStore rs = null;
try {
rs = RecordStore.openRecordStore(missionRMS, true);
} catch (RecordStoreFullException e) {
e.printStackTrace();
} catch (RecordStoreNotFoundException e) {
e.printStackTrace();
} catch (RecordStoreException e) {
e.printStackTrace();
}
return rs;
}

}

「已注销」 2007-07-02

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Package javax.microedition.rms

用于进行存储的包，负责数据的存取

yoci 2007-07-02

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能举个例子么？谢谢

yanhan0615 2007-07-02

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要看你保存在什么地方,你可以保存到文件,也可以保存到RMS,看你设计而定,而且,没有一个方法就能实现的

如何存取数据？

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