Python学习第7篇：字符串拼接

Posted 2020-11-08 小星1995

1.格式化字符有%s,%d，%f浮点数

%s代表格式化字符串，s是string意思

msg = \'my name is %s\'%"xiaoxing"
print(msg)
运行结果：
my name is xiaoxing

%d代表整型数据int

msg = \'my name is %s,age:%d\'%("xiaoxing",22)
print(msg)
运行结果：
my name is xiaoxing,age:22

%f 代表浮点数

tp_1 = "年利率为%f"%23.123456789
print(tp_1)
运行结果：
年利率为23.123457
默认进行四舍五入，保留六位小数

tp_1 = "年利率为%.2f"%23.123456789
print(tp_1)
运行结果：
年利率为23.12
可以通过.2进行控制四舍五入后保留的小数位


Format字符串
http://www.cnblogs.com/wupeiqi/articles/5484747.html