106-Python中常用占位符类型

Python中常用占位符类型

'The first letter of Python is %c' % 'P'
# 'The first letter of Python is P'

'Welcome to the world of %s!' % 'Python'
# 'Welcome to the world of Python!'

'Python has %i letters.' % len('Python')
# 'Python has 6 letters.'

number = 1.8888
print("Rounding %.4f to 2 decimal places is %.2f" % (number, number))
# Rounding 1.8888 to 2 decimal places is 1.89

number = 12
print("%i in octal is %o" % (number, number))
# 12 in octal is 14

number = 12000
print("%i is %.2e" % (number, number))
# 12000 is 1.20e+04