python生成生成10000行1-100的随机整数的文件

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生成10000行1-100的随机整数
import random
with open('data.txt','w') as f1,\
    open('data.txt','r') as f2:
    for i in range(10000):
        f1.write(U"%d\r\n"%random.randint(1,100))
    print(f2.read())
#########
import random
import time
st=time.time()
with open('data.txt','w') as f1,\
    open('data.txt','r') as f2:
    for i in range(100000):
        f1.write("%d\r"%random.randint(1,100))
    print(f2.read())
et=time.time()
print(et-st)
耗时0.03s