How to limit floating point type to two decimal places in python

Python controls the number of decimal places after the decimal point. There are three solutions

1. Use the round() function

Example: x=1.23456, you only want to keep 3 digits after the decimal point when outputting:

2, characters String formatting method

3, format() method

x =1.23456 print("{:.3f}".format(x))

#{} represents the slot, and subsequent variables are filled into the slot

#{:.3f} represents x When filling into the slot, take 3 decimal places

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