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  • Exercise 5: More Variables And Printing

    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 %s." % my_name
    print "He's %d inches tall." % my_height
    print "He's %d pounds heavy." % my_weight
    print "Actually that's not too heavy."
    print "He's got %s eyes and %s hair." % (my_eyes, my_hair) print "His teeth are usually %s depending on the coffee." % my_teeth # this line is tricky, try to get it exactly right print "If I add %d, %d, and %d I get %d." % (my_age, my_height, my_weight, my_age + my_height + my_weight)

    Try more format characters. %r is a very useful one. It's like saying "print this no matter what".

    You can use the round() function like this: round(1.7333).  round(flt, ndig=0) 四舍五入

    Python format characters

    ConversionMeaningNotes
    d Signed integer decimal.  
    i Signed integer decimal.  
    o Unsigned octal. (1)
    u Unsigned decimal.  
    x Unsigned hexadecimal (lowercase). (2)
    X Unsigned hexadecimal (uppercase). (2)
    e Floating point exponential format (lowercase).  
    E Floating point exponential format (uppercase).  
    f Floating point decimal format.  
    F Floating point decimal format.  
    g Same as "e" if exponent is greater than -4 or less than precision, "f" otherwise.  
    G Same as "E" if exponent is greater than -4 or less than precision, "F" otherwise.  
    c Single character (accepts integer or single character string).  
    r String (converts any python object using repr()). (3)
    s String (converts any python object using str()). (4)
    % No argument is converted, results in a "%" character in the result.

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  • 原文地址:https://www.cnblogs.com/hluo/p/4041652.html
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