public static JSON readJSON(File file, Charset charset) throws IORuntimeException {
		return parse(FileReader.create(file, charset).readString());
	}
public static JSON readJSON ( File file , Charset charset ) throws IORuntimeException { return parse ( FileReader . create ( file , charset ) . readString ( ) ) ; }
读取JSON

@param file JSON文件
@param charset 编码
@return JSON（包括JSONObject和JSONArray）
@throws IORuntimeException IO异常