python修改文件
## 修改文件with open("test.txt", "w+") as f:
f.write("I am a dba.\n")
f.write("I am a boy.\n")
f.seek(0)
print(f.read())
f = open("test.txt", "r")
with open("test.txt.bak", "w+") as f_n:
for l in f:
l = l.replace("dba", "developer")# 对指定内容就行替换修改
f_n.write(l)
f_n.seek(0)
print(f_n.read())
f.close()
if "test.txt" in os.listdir("."):
os.remove("test.txt")
os.rename("test.txt.bak", "test.txt")
页:
[1]