Format 方式:
常用格式化：
1 tpl = "i am {}, age {}, {}".format("seven", 18, 'alex') 2 3 #必须一一对应，否则会报错 4 tpl = "i am {}, age {}, {}".format(*["seven", 18, 'alex']) 5 6 7 tpl = "i am {0}, age {1}, really {0}".format("seven", 18) 8 9 10 tpl = "i am {0}, age {1}, really {0}".format(*["seven", 18]) 11 12 13 tpl = "i am {name}, age {age}, really {name}".format(name="seven", age=18) 14 15 16 tpl = "i am {name}, age {age}, really {name}".format(**{"name": "seven", "age": 18}) 17 ** 代表传字典 18 19 tpl = "i am {0[0]}, age {0[1]}, really {0[2]}".format([1, 2, 3], [11, 22, 33]) 20 21 22 tpl = "i am {:s}, age {:d}, money {:f}".format("seven", 18, 88888.1) 23 s 代表字符串 d 代表整数 24 25 tpl = "i am {:s}, age {:d}".format(*["seven", 18]) 26 * 代表列表 27 28 tpl = "i am {name:s}, age {age:d}".format(name="seven", age=18) 29 30 31 tpl = "i am {name:s}, age {age:d}".format(**{"name": "seven", "age": 18}) 32 33 34 tpl = "numbers: {:b},{:o},{:d},{:x},{:X}, {:%}".format(15, 15, 15, 15, 15, 15.87623, 2) 35 2进制 8进制 10进制 x与X: 16进制 %：百分比 36 37 tpl = "numbers: {:b},{:o},{:d},{:x},{:X}, {:%}".format(15, 15, 15, 15, 15, 15.87623, 2) 38 39 40 tpl = "numbers: {0:b},{0:o},{0:d},{0:x},{0:X}, {0:%}".format(15) 41 42 43 tpl = "numbers: {num:b},{num:o},{num:d},{num:x},{num:X}, {num:%}".format(num=15) 示例：ps1:
1 tpl = "i am {0}, age {1}, really {2}".format("seven", '18','alex') 2 print(tpl)执行结果：
1 i am seven, age 18, really alex
ps2:
1 tpl = "i am {2}, age {1}, really {0}".format("seven", '18','alex') 2 print(tpl)执行结果：
1 i am alex, age 18, really seven
ps3: 传字典的方式
1 tpl = "i am {name}, age {age}, really {name}".format(name="seven", age=18) 2 print(tpl)执行结果：
1 i am seven, age 18, really seven
ps4: ** 传字典的方式 (跟ps3的方式是一样的）
1 tpl = "i am {name}, age {age}, really {name}".format(**{"name": "seven", "age": 18}) 2 print(tpl)执行结果：
1 i am seven, age 18, really seven
ps5: * 代表：列表
1 tpl = "i am {:s}, age {:d}".format(*["seven", 18]) 2 print(tpl)执行结果：
1 i am seven, age 18
ps6:
1 tpl = "i am {:s}, age {:d}".format("seven", 18) #["seven", 18] 2 print(tpl)执行结果：
1 i am seven, age 18
ps7:
1 l=["seven", 18] 2 tpl = "i am {:s}, age {:d}".format('seven',18) 3 print(tpl)执行结果：
1 i am seven, age 18
ps8: 2进制 8进制 10进制 x与X: 16进制 %：百分比
1 tpl = "numbers: {:b},{:o},{:d},{:x},{:X}, {:%},{}".format(15, 15, 15, 15, 15, 15.87623, 2) 2 print(tpl)执行结果：
1 numbers: 1111,17,15,f,F, 1587.623000%,2 百分号方式:
常用格式化：
1 tpl = "i am %s" % "alex" 2 3 tpl = "i am %s age %d" % ("alex", 18) 4 5 tpl = "i am %(name)s age %(age)d" % {"name": "alex", "age": 18} 6 7 tpl = "percent %.2f" % 99.97623 #打印浮点数 8 9 tpl = "i am %(pp).2f" % {"pp": 123.425556, } 10 11 tpl = "i am %.2f %%" % {"pp": 123.425556, } #打开百分比
示例：
1、%s 可以字符串拼接
1 msg='i am %s my hobby is %s' % ('lhf','alex') 2 print(msg)执行结果：
1 i am lhf my hobby is alex
2、%s 可以按收任何类型（ 数字对应字符串）
1 msg='i am %s my hobby is %s' % ('lhf',1) 2 print(msg)执行结果：
1 i am lhf my hobby is 1
3、%s 可以字符串接收列表
1 msg='i am %s my hobby is %s' % ('lhf',[1,2]) 2 print(msg)执行结果：
1 i am lhf my hobby is [1, 2]
4、%s传字符串或任何值， %d只能接收数字
1 name='lhf' 2 age=19 3 msg='i am %s my hobby is %d' % (name,age) #age可以用%d or %s,但用%s程序可读性差 4 print(msg)执行结果：
1 i am lhf my hobby is 19
5、%d 只能接收数字类型，不能接收列表
1 # %d 只能按收数字类型 2 msg='i am %s my hobby is %d' % ('lhf',1) 3 print(msg)执行结果：
1 i am lhf my hobby is 1
6、%d 不能接收列表类型,会报错
1 msg='i am %s my hobby is %d' % ('lhf',[1,2]) 2 print(msg)执行结果：
1 Traceback (most recent call last): 2 File "D:/python/day5/format_type.py", line 14, in <module> 3 msg='i am %s my hobby is %d' % ('lhf',[1,2]) 4 TypeError: %d format: a number is required, not list
7、打印浮点数
1 tpl = "percent %.2f" % 99.976234444444444444 2 print(tpl)执行结果：
1 percent 99.98
8、打印百分比
1 tpl = 'percent %.2f %%' % 99.976234444444444444 2 print(tpl)执行结果：
1 percent 99.98 %
9、左边打印空格
1 msg='i am %(name)+60s my hobby is alex' %{'name':'lhf'} 2 print(msg)执行结果：
1 i am lhf my hobby is alex
10、打印空格加颜色(黄色）
1 msg='i am \033[43;1m%(name)+60s\033[0m my hobby is alex' %{'name':'lhf'} 2 print(msg)执行结果：
1 i am lhf my hobby is alex
19、不用格式化的方式
1 print('root','x','0','0',sep=':') 2 print('root'+':'+'x'+':'+'0','0')执行结果：
1 root:x:0:0 2 root:x:0 0