python: 自动去除空行

Hello

Nanjing

100

file_ = "1.txt"
r_file = open(file_, "r")
lines = r_file.readlines()
r_file.close()
for idx, line in enumerate(lines):
    if line.split():
        print(idx, line)
r_file.close()

0 Hello
2 Nanjing
4 100