'''
3
x 12
--------
36
'''
I'm trying to express this expression in code. I've tried the bottom four
#try1
a=3
b=12
print('%8d' %a)
print('%-6s%-1d'%('x',b))
print('--------')
print('%8d'%(a*b))
#try2
a=3
b=12
print('%8d' %a)
print('%-5s %-1d'%('x',b))
print('--------')
print('%8d'%(a*b))
#try3
a=3
b=12
print('%8d' %a)
print('%s %6d'%('x',b))
print('--------')
print('%8d'%(a*b))
#try4
a=3
b=12
print('%8d' %a)
print('%s%7d'%('x',b))
print('--------')
print('%8d'%(a*b))
When formatting with minus sign in %-6d absolute value of -6 in numbers (%-6d), while
Formatting without - will result in an absolute value of 8 for the numbers.
I don't know why the two are different I'd appreciate it if you let me know!
python formatting string
The number after % means the minimum number of characters.
%6d and %-6d all have the same number of characters when a number that does not exceed 6 digits, including a minus sign.
However, the minimum number of characters in Try1 and Try2 is 6 or 7, so it seems that the number larger than the corresponding size was not entered during the test. However, depending on the size of the b values in Try1 and Try2, if it exceeds one digit, the string is formed over the minimum number, which seems to have changed the length of the string length.
This does not cause problems in the examples below.
def print_format(data):
x = '%3d'%(data)
y = '%-3d'%(data)
print(x)
print(y)
print(len(x))
print(len(y))
print_format(10)
print_format(-10)
print_format(100)
However, in the following examples, the length is output as 4.
def print_format(data):
x = '%3d'%(data)
y = '%-3d'%(data)
print(x)
print(y)
print(len(x))
print(len(y))
print_format(-100)
print_format(1000)
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