if and condition

4.2.2 The switch statement that expresses the side-by-side condition selection: If ... If...... If......In the real world, there is a special kind of conditional choice:If it is sunny tomorrow, I will wear a T-shirt;If it is cloudy tomorrow, I will

Hello, C ++ (20). 4.2.2 represents the switch statement selected by the parallel condition: if ...... If ...... If ......,. 4.2.24.2.2 expression of the switch statement selected by the parallel condition: if ...... If ...... If ...... In the real

4.2.2 The switch statement that expresses the side-by-side condition selection: If ... If...... If......In the real world, there is a special kind of conditional choice:If it is sunny tomorrow, I will wear a T-shirt;If it is cloudy tomorrow, I will

from:http://blog.csdn.net/fengge8ylf/article/details/6896380 Author: Wang Dong 1.1 What is conditional variable and condition wait. To put it simply: A condition variable (condition variable) is a mechanism for synchronizing with global variables

http://blog.itpub.net/22664653/viewspace-1210844/--This blog is written in a finer, later lookICP (index condition pushdown) is an optimization of MySQL's use of index (level two index) tuples and sieve fields to extract data records from a table in

POSIX condition Variables int Pthread_cond_init (pthread_cond_t *cond, pthread_condattr_t *cond_attr); int Pthread_cond_destroy (pthread_cond_t * cond); int pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex); int

From: http://m.jb51.net/article/56553.htm This article mainly introduced the shell script if condition judgment and the judgment condition summary, this article first gave the IF condition judgment the grammar, then gave the commonly used judgment

You can use the # If/# endif block to generate different compilation (results) on the same source code. Most of the two versions are debug and release. But they are by no means a tool we like. Because # If/# endif is easily abused, it makes the

Introduction: The related functions are as follows:1 int pthread_cond_init (pthread_cond_t * cond, pthread_condattr_t * cond_attr );2 int pthread_cond_wait (pthread_cond_t * cond, pthread_mutex_t * mutex );3 int pthread_cond_timewait (pthread_cond_t

Conditional statements are used to perform different actions based on different conditions. Conditional statement Usually when writing code, you always need to perform different actions for different decisions. You can use conditional statements