我正在研究一个作业问题，该问题基本上要考虑一些有关输出区域尺寸的值。我真正挣扎的唯一部分是，我的硬件站点上的解释器只想要小数点后一位。我正在使用float，并且按预期得到许多小数点。有谁知道小数点后只输出一个十进制值？
我真正尝试过的唯一一件事就是更改数据类型int，float，double。但是我知道有一个格式化选项可能会有所帮助，但我们还没有介绍，因此我想在不使用该方法的情况下解决它
wallHeight = float(input('Enter wall height (feet): \n'))
wallWidth = float(input('Enter wall width (feet): \n'))
wallArea = float(wallHeight * wallWidth)
print('Wall area: %f ' % wallArea + 'square feet')
# FIXME (2): Calculate and output the amount of paint in gallons needed to paint the wall
gallon_paint = 350
paint_coverage = float(wallArea/(gallon_paint))
print('Paint needed: %f ' %paint_coverage)
# FIXME (3): Calculate and output the number of 1 gallon cans needed to paint the wall, rounded up to nearest integer
cans_of_paint = int(paint_coverage) + 1
print('Cans needed: %d'%cans_of_paint + ' can(s)')
# FIXME (4): Calculate and output the total cost of paint can needed depending on color
color = input('Choose a color to paint the wall:')
color_chosen = int(paint_colors.get(color))
cost = int(color_chosen * cans_of_paint)
price = 'Cost of purchashing ' + color +' paint: ' + str(cost)
print(price)