Python 只得到 1 个小数位
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时间:2020-08-18 10:52:15 来源:igfitidea点击:
Getting only 1 decimal place
提问by l--''''''---------''''''''''''
How do I convert 45.34531to 45.3?
我如何转换45.34531为45.3?
采纳答案by relet
Are you trying to represent it with only one digit:
您是否试图仅用一位数字表示它:
print("{:.1f}".format(number)) # Python3
print "%.1f" % number # Python2
or actually round off the other decimal places?
或者实际上四舍五入其他小数位?
round(number,1)
or even round strictly down?
甚至严格向下舍入?
math.floor(number*10)/10
回答by DixonD
round(number, 1)
回答by miku
>>> "{0:0.1f}".format(45.34531)
'45.3'
Or use the builtin round:
或者使用内置回合:
>>> round(45.34531, 1)
45.299999999999997

