python 中字符串的格式化

# 字符串格式化
name = input("name:")
age = int(input("age:"))
job = input("job:")
salary = input("salary:")

if salary.isdigit():   # 判断是否是数字
    salary = int(salary)
# else:
#     # print("please input digit")
#     # exit()
#     exit("please input digit")  # 退出程序


msg = '''
------info of %s------
name:%s
age:%s    #%d
job:%s
salary:%s     #%d
You will be retired in %s year
-------end-------
''' % (name, name, age, job, salary, 65-age)
print(msg)