摘要:
import 'package:flutter/material.dart';import 'dart:ui';void main() => runApp(MyApp());class MyApp extends StatelessWidget { @override Widget build(Bu 阅读全文
摘要:
import 'package:flutter/material.dart';void main() => runApp(MyApp());class MyApp extends StatelessWidget { @override Widget build(BuildContext contex 阅读全文
摘要:
import 'package:flutter/material.dart';void main()=>runApp(MyApp());class MyApp extends StatelessWidget { @override Widget build(BuildContext context) 阅读全文
摘要:
import 'package:flutter/material.dart';void main()=>runApp(MyApp());class MyApp extends StatelessWidget { @override Widget build(BuildContext context) 阅读全文
摘要:
STM32在操作外设之前必须先开相应的时钟,一般STM32有两条时钟总线,外设一般都连载这两条时钟总线的一条上,但是用stm32cubemx来生成项目的时候,你不用自己开时钟总线,stm32cubemx生成的项目会自动打开你初始化的总线。 其中,HAL_Delay()函数是HAL库的延时函数,单位是 阅读全文