Python笔记：格式化输出%s,%d和%f

Python中查看一些框架代码，做日志输出或者做面试题中，经常需要了解到格式化输出的理解。

看下面的代码就了解了格式化输出的用法了：

# 直接使用
print("Name:%s Age:%d Height:%f" % ("Aviad",25,1.83))
# Name:Aviad Age:25 Height:1.830000

# 指定占位符宽度 +号右对齐 -左对齐  默认占位符时空格
print("Name:%10s Age:%8d Height:%8.2f" % ("Aviad", 25, 1.83))
# Name:     Aviad Age:      25 Height:    1.83

# -左对齐
print("Name:%-10s Age:%-8d Height:%.2f" % ("Aviad", 25, 1.83))
# Name:Aviad      Age:25       Height:1.83

# 用0作为占位符
print("Name:%-10s Age:%08d Height:%08.3f"%("Aviad",25,1.83))
# Name:Aviad      Age:00000025 Height:0001.830