1 test1 = 'I am {name},age {a}'.format(name='newmet', a=15) 2 print(test1) 3 test1 = 'I am {name},age {a}'.format(**{"name": 'newmet', "a" : 15}) 4 print(test1) 5 test1 = 'I am {1},age {0}'.format('newmet', 15) 6 print(test1) 7 test1 = 'I am {1},age {1}'.format('newmet', 15) 8 print(test1) 9 test1 = "I am {0[0]}, age {0[1]}, really {0[2]}".format([1, 2, 3], [11, 22, 33]) 10 print(test1) 11 test1 = "I am {:s}, age {:d}, money {:f}".format("seven", 18, 88888.1) 12 print(test1) # I am seven, age 18, money 88888.100000 13 test1 = "I am {:s}, age {:d}".format(*["seven", 18]) 14 print(test1) 15 test1 = "I am {name:s}, age {age:d}".format(name="seven", age=18) 16 print(test1) 17 test1 = "I am {name:s}, age {age:d}".format(**{"name": "seven", "age": 18}) 18 print(test1) 19 test1 = "numbers: {:b},{:o},{:d},{:x},{:X}, {:%}".format(15, 15, 15, 15, 15, 15.87623, 2) 20 print(test1) #:b - 二进制 ：0 - 八进制 ：d - 整型 ：x - 小写十六进制 ：X - 大写十六进制 ：% - 显示百分比 21 test1 = "numbers: {:b},{:o},{:d},{:x},{:X}, {:%}".format(15, 15, 15, 15, 15, 15.87623, 2) 22 print(test1) # numbers: 1111,17,15,f,F, 1587.623000% 23 test1 = "numbers: {0:b},{0:o},{0:d},{0:x},{0:X}, {0:%}".format(15) 24 print(test1) # numbers: 1111,17,15,f,F, 1500.000000% 25 test1 = "numbers: {num:b},{num:o},{num:d},{num:x},{num:X}, {num:%}".format(num=15) 26 print(test1) # numbers: 1111,17,15,f,F, 1500.000000%