这里我准备按照官方目录，把examples里面的东西都列出来，这篇不会写的太详细，我也刚开始学习，应该会编辑很久，当一个目录来使用。后面需要用到examples里的具体内容，再单独开一篇笔记记录下来
1.get-started（开始）
Simple examples with minimal functionality. Good start point for beginners.
功能最少的示例，适合新手。
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blink
亮灯demo,支持高低电平控制或者RBG灯控制，在menuconfig里面可配置亮灯参数。
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hello_world
打印选用esp芯片参数，配置，版本，flash大小，延时重启。
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sample_project
这是一个可编译工程样板，只有一个头文件和一个空的主函数。
2.bluetooth（蓝牙）
nimble
hci
ble_get_started
bluedroid
blufi
esp_ble_mesh
esp_hid_device
esp_hid_host
3.build_system
Examples of build system features.
4.custom_bootloader
5.cxx
C++ language utilization examples and experimental components.
6.ethernet
Ethernet network examples.
7.mesh
Wi-Fi Mesh examples.
8.network
Examples related to general network environment, test & analysis.
9.openthread
OpenThread examples.
10.peripherals
Examples showing driver functionality for the various onboard ESP32 peripherals.
11.phy
12.protocols
Examples showing network protocol interactions.
13.provisioning
Wi-Fi provisioning examples.
14.security
Examples about security features.
15.storage
Examples showing data storage methods using SPI flash, external storage like the SD/MMC interface and flash partitioning.
16.system
Demonstrates some internal chip features, or debugging & development tools.
17.wifi
Advanced Wi-Fi features (For network protocol examples, see protocols instead.)
18.zigbee
Zigbee network and device examples.
