如何高效将两个有序数字文件合并至一个文件
2019-12-19 本文已影响0人
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with open("a.txt") as f1, open("b.txt") as f2, open("c.txt", "w") as f3:
a1 = f1.next()
b1 = f2.next()
while True:
if int(a1.strip("\n")) > int(b1.strip("\n")):
f3.write(b1)
try:
b1 = f2.next()
except StopIteration:
f3.write(a1)
for line in f1:
f3.write(line)
break
elif int(a1.strip("\n")) == int(b1.strip("\n")):
f3.write(a1)
try:
a1 = f1.next()
except StopIteration:
f3.write(b1)
for line in f2:
f3.write(line)
break
try:
b1 = f2.next()
except StopIteration:
f3.write(a1)
for line in f1:
f3.write(line)
break
elif int(a1.strip("\n")) < int(b1.strip("\n")):
f3.write(a1)
try:
a1 = f1.next()
except StopIteration:
f3.write(b1)
for line in f2:
f3.write(line)
break
