文件相关 ​

//Node版引擎导入方式
import core from 'cheese-node';
//JS版引擎导入方式
const core = require('cheese-js');

读取文件或文件夹:read(path: string): Array<string> ✅ ​

🔒权限: 储存

参数:

• ⭐string (path):路径

返回值:

• 🟢Array<string>:文件内容 or 文件列表
• 🔴null

用法示例:

const files = core.files;
console.log(files.read("/storage/emulated/0/test.txt"))

删除文件或文件夹:rm(path: string): boolean ✅ ​

🔒权限: 储存

参数:

• ⭐string (path):路径

返回值:

• 🟢boolean: true
• 🔴boolean: false

用法示例:

const files = core.files;
console.log(files.rm("/storage/emulated/0/test.txt"))

创建文件或文件夹:create(path: string): boolean ✅ ​

🔒权限: 储存

参数:

• ⭐string (path):路径

返回值:

• 🟢boolean: true
• 🔴boolean: false

用法示例:

const files = core.files;
console.log(files.create("/storage/emulated/0/test.txt"))

拷贝文件或文件夹: copy(path: string, destPath: string) ✅ ​

参数:

• ⭐string (path): 文件或文件夹路径
• ⭐string (destPath): 目标路径

返回值:

• 🟢boolean: true
• 🔴boolean: false

用法示例:

const files = core.files;
if (files.copy("/storage/emulated/0/test.txt", "/storage/emulated/0/c.txt")) {
    console.log("复制成功");
}

从JSON文件中读取指定键的值:readJson(filesPath: string, keys: string): boolean ✅ ​

🔒权限: 储存

参数:

• ⭐string (filesPath):文件路径
• ⭐string (keys):键名

返回值:

• 🟢string:指定键的值
• 🔴null

用法示例:

const files = core.files;
console.log("内容:" + files.readJson("/storage/emulated/0/test.txt", "name"))

判断路径是不是文件夹: isFolder(path: string): boolean ✅ ​

参数:

• ⭐string (path): 路径

返回值:

• 🟢boolean: true
• 🔴boolean: false

用法示例:

const files = core.files;
if (files.isFolder("/storage/emulated/0")) {
    console.log("是文件夹");
}

判断路径是不是文件: isFile(path: string): boolean ✅ ​

参数:

• ⭐string (path): 路径

返回值:

• 🟢boolean: true
• 🔴boolean: false

用法示例:

const files = core.files;
if (files.isFile("/storage/emulated/0/test.txt")) {
    console.log("是文件");
}

追加写入文件:append(filesPath,content): boolean ✅ ​

🔒权限: 储存

参数:

• ⭐string (filesPath):文件路径
• ⭐string (content):追加写入内容

返回值:

• 🟢boolean:true
• 🔴boolean:fasle

用法示例:

const files = core.files;
if (files.append("/storage/emulated/0/test.txt", "你好")) {
    console.log("追加写入成功")
}

覆盖写入文件:write(filesPath,content): boolean ✅ ​

🔒权限: 储存

参数:

• ⭐string (filesPath):文件路径
• ⭐string (content):覆盖写入内容

返回值:

• 🟢boolean:true
• 🔴boolean:fasle

用法示例:

const files = core.files;
if (files.write("/storage/emulated/0/text.txt", "你好")) {
    console.log("覆盖写入成功")
}

将对象保存到SD卡: save(obj: any, path: string): boolean ✅ ​

🔒权限: 储存 参数:

• ⭐any (inputStream): InputStream对象
• ⭐string (path): 要保存到的SD卡路径

返回值:

• 🟢boolean:true
• 🔴boolean:fasle

用法示例:

const files = core.files;
const converters = core.converters;
const inputStream = converters.sdToStream("/storage/emulated/0/test.txt");
if (files.save(inputStream, "/storage/emulated/0/1.txt")) {
    console.log("保存成功");
}