马老师MySQL+JDBC
import threadingimport multiprocessingdef sum_n(n, e=None):
s= 0
for i in range(1, n+1):
if e and i % e == 0:
continue
s += i
name = threading.current_thread().name # 当前线程的名称
pname = multiprocessing.current_process().name print(pname, name, n, '以内的所有数据和为', s)def t():
# 快捷键： ctrl+p 显示方法的参数
# 创建三个进程（子进程）， 当前所在的进程是父进程
thread1 = threading.Thread(target=sum_n, args=(100,))
thread2 = threading.Thread(target=sum_n, args=(1000, 5)) # ctrl+d 快速复制一行
thread3 = threading.Thread(target=sum_n, kwargs=dict(n=10000, e=2))
