python从零开始－－04print和input-优快云博客

本文介绍了Python中使用print函数进行格式化输出的方法，包括不同类型的占位符使用方式，并展示了如何利用input函数获取用户输入。

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　　print功能用来打印字符，有好几种写法；下面是目前最为推荐的写法,是使用format方法格式化字符串：

print("xxxxx{}, yyyyy{}".format(a, b))。

my_name = 'Zed A. Shaw'
my_age = 35 # not a lie
my_height = 74 # inches
my_weight = 180 # lbs
my_eyes = 'Blue'
my_teeth = 'White'
my_hair = 'Brown'

print("Let's talk about {}".format(my_name ))
print("He's {} inches tall.".format(my_height))
print("He's {} pounds heavy.".format(my_weight))
print("Acutally that's not too heavy.")
print("He's got {} eyes and {}.".format(my_eyes,my_hair))
print("His teeth are usually {} depending on the coffee".format(my_teeth))

# this line is tricky, try to get it exactly right
total = my_age + my_height + my_weight
print("If I add {},{}, and {} I get {}".format(my_age,my_height,my_weight,total))

占位符	替换内容
%d	整数
%f	浮点数
%s	字符串
%x	十六进制整数

print("This is {} value {:.1f}".format('PI', 3.1415926))
print('{0}的体重为{1:.2f}'.format('阿牛', 99.786))

This is PI value 3.1
阿牛的体重为99.79

　　输入用input:

var_input = input()
print(var_input)