python 几个小字符串格式化 %.3f {:1.0f}.format()

x = 50000011
s = '${:1.1f}M'.format(x*1e-6)
print(s)
s = '${:1.0f}K'.format(x * 1e-3)
print(s)
s = '${:.3f}K'.format(x * 1e-3)
print(s)
s = '%.3f' % (x*1e-3)
print(s)

$50.0M
$50000K
$50000.011K
50000.011