📅  最后修改于: 2022-03-11 14:45:31.541000             🧑  作者: Mango
searched = "snow" # every line containing the variable "searched" will be deleted
with open("file.txt","r+") as f: # open your file
new_f = f.readlines()
f.seek(0)
for line in new_f:
if searched not in line:
f.write(line)
f.truncate() # close your file