import threading
import random
import string
lock = threading.RLock()

fn = []

def run():
    try:
        f = file(filename,'wb')
        for p in range(1,100):
            salt = ''.join(random.sample(string.ascii_letters + string.digits, 62)) # 随机62位字符串
            f.write(salt)
            f.write("\n")
        lock.acquire()
        f.close()
        lock.release()
    except TypeError:
        pass

for i in range(1,10000000):
    filename = random.randint(1,100000000)
    fn.append(filename)
    if filename not in fn:
       continue 
    else:
        filename = str(filename)
        t = threading.Thread(target=run,args=())
        t.start()

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