小弟初学DSP2812，希望哪位大侠帮助小弟解释一下下面这个主程序的意思，谢谢了。#include "DSP28_Device.h"#include "ext_inf.h"unsigned int Led_Flag;//unsigned int *led_7seg;//unsignedint*led_7seg = (unsignedint *)0x02000;#define led_7seg (*((unsigned int *)0x02400))void delay_ms(unsigned int n){unsigned int i,j;for(j=0;j
2014-01-18 16:26
LTC3219的引脚功能是什么？LTC3219是什么工作原理？高效LED驱动器LTC3219的应用是什么？
2021-06-07 06:28
做一个webview组件，思路如下：用户首次登陆，cookie为空，webivew.load（url），然后通过onPageLoaded获得cookie，再setCookie，下次用户二次登陆可以直接登陆而不用输入账号密码。代码如下：url1 = "xxxxxxxx";webView = (WebView) findComponentById(ResourceTable.Id_webview);webView.getWebConfig().setJavaScriptPermit(true);cookieStore = CookieStore.getInstance();cookieStore.setCookieEnable(true);cookieStore.setCrossDomainCookieEnable(webView, true);if (cookieStore.getCookie(url1) == null) { webView.load(url1);} else { String[] cookies = cookieStore.getCookie(url1).split(";"); for (int i = 0; i < cookies.length; i++) {cookieStore.setCookie(url1,cookies[i]); } cookieStore.persist(); webView.load(url1);}webView.setWebAgent(new WebAgent() { @Override public boolean isNeedLoadUrl(WebView webView, ResourceRequest request) {return true; } @Override public void onPageLoaded(WebView webView, String url) {super.onPageLoaded(webView, url);cookieStore.setCookieEnable(true);cookieStore.setCrossDomainCookieEnable(webView, true);cookieStore.getCookie(url1);cookieStore.persist(); }});在setCookie中能看到key=value值，但是app进程一结束，cookie就失效。此问题困扰我好几天，望各位大神不吝赐教！谢谢！
2022-03-25 10:36
读写从一个特定的端口引脚而不影响同一港口的其他引脚的正确方法是什么？ 以上来自于百度翻译 以下为原文What is the correct way to read and write from a particular port pin without affecting the other pins of the same port?
2019-02-19 14:15
