字符串反转 //调用 char cha[] = "hello,word"; char_reverse(cha); printf("revers result is %s",c...
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字符串反转 //调用 char cha[] = "hello,word"; char_reverse(cha); printf("revers result is %s",c...
iOS都有哪些锁:synchronized 、atomic、oSSpinLook、NSLock、dispatch_semaphore_t synchronized 例如创建单...
什么是block:block是将函数及其上下文封装起来的对象什么是block调用:block调用即是函数的调用 终端命令 clang -rewrite-objc fileNa...