python-字符串格式化

Posted 2020-11-10 灿烂初秋

附录：上课代码
import datetime
user = ‘yanhx‘
today = datetime.datetime.today() #获取到今天的日期
# print(type(user))
# print(type(today))
today = str(today)
# int str
# msg = ‘欢迎‘+user+‘光临，今天的日期是‘+today
# msg = ‘欢迎%s光临，今天的日期是%s\n‘ %(user,today)
# 占位符 %s 字符串；%d 整数； %f小数
age = 18
score = 98.758
round(score,2)# round代表保留几位小数
print(round(score,2))
msg = ‘你的年龄是%d,你的分数是%f‘%(age,score)#%.2f保留两位小数
print(msg)