如何使用python打印一行中以相同数字开头的行

with open('file.txt', 'r') as file:
    lines = file.readlines()

same_number_lines = []
for line in lines:
    if line.strip().isdigit() and lines.count(line) > 1:
        same_number_lines.append(line)

for line in same_number_lines:
    print(line)

with open('file.txt', 'r') as file:
    lines = file.readlines()

same_number_lines = []
for line in lines:
    if line.strip().isdigit() and lines.count(line) > 1:
        same_number_lines.append(line)

for line in same_number_lines:
    print(line)