打开文件时如何使用if/else条件。python

打开文件时是否有任何使用条件的方法？ 示例：读完所有行后，

print（“reading finished”）

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我在互联网上找不到任何答案。

退出你的

for

循环

with open("read.txt", "r") as s:
    for lines in s:
        data = lines.split(":")
        e = data[0]
        m = data[1]
    #When I finished reading all the lines
    print("Read Finish")

with open("read.txt", "r") as s:
    for lines in s:
        data = lines.split(":")
        e = data[0]
        m = data[1]
    #When I finished reading all the lines
    print("Read Finish")