1.验证签名 { [self generateRSAKeyPair:kRSA_KEY_SIZE]; NSData *ttDt = [" dataUsingEncoding:NSASCIIStringEncoding]; NSData *sha1dg = [ttDt hashDataWith:CCDIGEST_SHA1]; OSStatus ret; //私钥签名,公钥验证签名 size_t siglen = SecKeyGetBlockSize(privateKeyRef); uint8_t *…

This is guide, howto install Adobe Flash Player Plugin version 27 (32-bit and 64-bit) with YUM/DNF on Fedora 27/26/25/24/23/22, CentOS 7.4/6.9 and Red Hat (RHEL) 7.4/6.9. Using Adobe’s own YUM repository it is very easy also keep up-to-date with Flas…

27 [程序 27 求素数] 题目:求 100 之内的素数 package cskaoyan; public class cskaoyan27 { @org.junit.Test public void prime() { int mix = 1; int max = 100; for (int i = mix; i <= max; i++) { if (isPrime(i)) { System.out.println(i); } } } private boolean isPrime(int…

1. 解决方法可以有两种,一种是不使用New Build System,在File > Project/Workspace Settings中的Share Project/Workspace Settings 里build system 将New Build System(Default)切换成Legacy build system.   https://www.jianshu.com/p/fdb1421f3c8b…

1. 7.如果将自己打包的bundle给别人使用,别人在打包上传过程中可能会遇到错误提示如: ERROR ITMS-90171: "Invalid Bundle Structure - The binary file 'lhby.app/Test.bundle/Test' is not permitted. Your app can’t contain standalone executables or libraries, other than a valid CFBundleExecutab…

1.clang -rewrite-objc main.m #import <objc/runtime.h> #import<objc/message.h> #import <Foundation/Foundation.h> @interface Person : NSObject //为了方便查看重写的代码将name改成cjmName @property (nonatomic, copy) NSString *cjmName; @property (nonatomic,…

1. 在进行 pull 操作的同时,其实就是 fetch+merge 的一个过程.我们从 remote 分支中拉取新的更新,然后再合并到本地分支中去. 如果 remote 分支超前于本地分支,并且本地分支没有任何 commit 的,直接从 remote 进行 pull 操作,默认会采用 fast-forward 模式,这种模式下,并不会产生合并节点,也就是说不会产生多余的那条 log 信息 如果想之前那样,本地先 commit 后再去 pull,那么此时,remote 分支和本地会分支会出现分叉…

1. While the usage of epoll when employed as a level-triggered interface does have the same semantics as poll(2) int addfd(int epollfd,int fd, bool enable_et) { struct epoll_event event; event.data.fd = fd; event.events = EPOLLIN; if(enable_et) { eve…

1.objc_msgSendSuper super 的含义,消息转发会调用 objc_msgSendSuper, 就是 去父类的方法列表中找到 initWithFrame:这个方法,然后调用,调用的主体是 self.super 只是一个编译器的特殊字符,并不代表父类的一个实例化对象.这也就能明白为什么 调用 [super initWithFrame:frame]能得到本类的 实例化对象了,而不是父类的对象了.   https://www.jianshu.com/p/60352a5eb940…

1. source 'https://github.com/CocoaPods/Specs.git' target 'YOUR_APPLICATION_TARGET_NAME_HERE' do platform :ios, '9.0' pod 'GoogleWebRTC' end http://rtc.elesos.com/native-code/ios/ https://blog.csdn.net/chenxiemin/article/details/78998492 https://gith…