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Exercise 5: More Variables And Printing
my_name = ‘Zed A. Shaw‘my_age = 35 # not a liemy_height = 74 # inchesmy_weight = 180 # lbsmy_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 rightprint "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
| Conversion | Meaning | Notes |
|---|---|---|
| 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. |
Exercise 5: More Variables And Printing
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