python多线程求和

import threading

# 定义求和函数
def sum_thread(start, end, result):
    s = 0
    for i in range(start, end):
        s += i
    result.append(s)

# 定义数据范围和线程数量
num_threads = 4
num_range = 100000

# 创建线程列表和结果列表
threads = []
results = []

# 划分数据块并创建线程
for i in range(num_threads):
    start = int(num_range / num_threads * i)
    end = int(num_range / num_threads * (i+1))
    result = []
    thread = threading.Thread(target=sum_thread, args=(start, end, result))
    thread.start()
    threads.append(thread)
    results.append(result)

# 等待线程执行完成
for thread in threads:
    thread.join()

# 求和结果
total = 0
for result in results:
    total += result[0]

print('总和为：', total)