Python output percentages in two ways

Python output percentages in two ways

Note: Test under the PYTHON3 environment.

Mode 1: Direct use of parameter formatting: {:.2%}

{:.2%}: Show 2 digits after decimal point

• Show 2 digits after the decimal point:

print(‘percent: {:.2%}‘.format(42/50))percent: 84.00%

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• Do not display decimal digits: {:.0%} , that is, will be 2 changed to 0 :

print(‘percent: {:.0%}‘.format(42/50))percent: 84%

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Mode 2: Format to float and then process into% format: {:.2f}%

The difference from Mode 1 is:

(1) to 42/50 multiply by 100.
(2) on the outside of Mode 2 % { } , Mode 1 is inside % { } .

• Show 2 digits after the decimal point:

print(‘percent: {:.2f}%‘.format(42/50*100))percent: 84.00%

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• Show 1 digits after the decimal point:

print(‘percent: {:.1f}%‘.format(42/50*100))percent: 84.0%

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• Show only integer digits:

print(‘percent: {:.0f}%‘.format(42/50*100))percent: 84%

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Description

{ }Corresponds to format() a parameter, in the default order corresponding to the parameter ordinal starting from 0, {0} corresponding to format() the first parameter, corresponding to the {1} second parameter. For example:

• Default order:

print(‘percent1: {:.2%}, percent2: {:.1%}‘.format(42/50, 42/100))percent1: 84.00%, percent2: 42.0%

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• Specify the Order:
  {1:.1%}Corresponds to the 2nd parameter, corresponding to the {0:.1%} 1th parameter.

print(‘percent2: {1:.1%}, percent1: {0:.1%}‘.format(42/50, 42/100))percent2: 42.0%, percent1: 84.0%

Python output percentages in two ways