Python multi-thread programming-Python tutorial

This article introduces Python multi-Thread programming. This article describes how to create a Thread, Thread object function, and common examples. For more information, see Create thread

The format is as follows:

The code is as follows:

Threading. Thread (group = None, target = None, name = None, args = (), kwargs = {})

This constructor must be called by passing parameters with keywords.
-Group Thread group
-Target execution method
-Name: thread name
-Tuples executed by args target
-Dictionary parameters executed by kwargs target

Thread object functions

Function description
Start () starts Thread Execution
Run () is a function that defines the functions of a thread (usually overwritten by the quilt class)
The join (timeout = None) program is suspended until the thread ends. if timeout is given, a maximum of timeout seconds can be blocked.
GetName () returns the thread name
SetName (name) sets the thread name
The isAlive () Boolean flag indicates whether the thread is still running.
IsDaemon () returns the daemon flag of the thread
SetDaemon (daemonic) sets the daemon flag of a thread to daemonic (must be called before the start () function is called)

Common examples

Format

The code is as follows:

Import threading

Def run (* arg, ** karg ):
Pass
Thread = threading. Thread (target = run, name = "default", args = (), kwargs = {})
Thread. start ()

Instance

The code is as follows:

#! /Usr/bin/python
# Coding = UTF-8

Import threading
From time import ctime, sleep

Def sing (* arg ):
Print "sing start:", arg
Sleep (1)
Print "sing stop"

Def dance (* arg ):
Print "dance start:", arg
Sleep (1)
Print "dance stop"

Threads = []

# Create a thread object
T1 = threading. Thread (target = sing, name = 'singthread', args = ('raise me up ',))
Threads. append (t1)

T2 = threading. Thread (target = dance, name = 'dancethread', args = ('rule ',))
Threads. append (t2)

# Start thread
T1.start ()
T2.start ()

# Waiting for the thread to end
For t in threads:
T. join ()

Print "game over"

Output

The code is as follows:

Sing start: ('raise me up ',)
Dance start: ('rule ',)
Sing stop
Dance stop
Game over