# 字符串格式化

# %s可以接受一切

# %d接受数字

# print('i am %s wow'%'lia')
# s='i am %s wow'%'lia'
# s1='i am %s wow'+'lia'
# s2='i am %s wow','lia'
# s3='i am %s %s wow'%('lia','~')
# s4='i am %s %s wow'%('lia',[1,2])
# s5='i am %s %d wow'%('lia',666)
# print(s)
# print(s1)
# print(s2)
# print(s3)
# print(s4)
# print(s5)

浮点数

# s='浮点数%f'%99.94949494949494999
# s1='精确小数点2位 %.2f'%99.49499494949
# s2='字符串截取2位 %.2s'%99.49499494949
# s3='精确小数点2位 %.2f %%'%99.49499494949
# print(s)
# print(s1)
# print(s2)
# print(s3)

字典拼接字符串

dic='you are %(name)s ~ %(age)d'%{'name':'ace','age':18}
print(dic)

空格60个,43是控制颜色的

dic='空格60个,43是控制颜色的 \033[43;1m%(name)+60s\033[0m ~ %(age)d'%{'name':'ace','age':18}
print(dic)

sep拼接

print('user','me','pwd','123',sep=':')