Python thread Lock (thread) Learning example

Copy CodeThe code is as follows:

# Encoding:utf-8
Import Thread
Import time

# a function for executing in thread
def func ():
For I in range (5):
print ' func '
Time.sleep (1)

# End Current Thread
# This method is equivalent to Thread.exit_thread ()
Thread.exit () # When Func returns, the thread also ends

# Start a thread and the thread starts running immediately
# This method is equivalent to Thread.start_new_thread ()
# The first parameter is the method, the second argument is the parameter of the method
Thread.start_new (func, ()) # method requires an empty tuple when there are no arguments

# Create a lock (LockType, cannot be instantiated directly)
# This method is equivalent to Thread.allocate_lock ()
Lock = Thread.allocate ()

# Determine if the lock is locked or released
Print lock.locked ()

# locks are typically used to control access to shared resources
Count = 0

# get lock, return True when lock is successfully obtained
# The optional timeout parameter is blocked until the lock is obtained
# Otherwise the timeout will return false
If Lock.acquire ():
Count + = 1

# release Lock
Lock.release ()

# threads provided by the thread module will end at the end of the main thread
Time.sleep (6)

Other methods provided by the thread module:
Thread.interrupt_main (): Terminates the main thread in other threads.
Thread.get_ident (): Gets a magic number representing the current thread, often used to get thread-related data from a dictionary. The number itself has no meaning and is reused by the new thread when the thread ends.

Thread also provides a threadlocal class for managing thread-related data, called thread._local,threading, which refers to this class.

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