% 1.
Print ( 'I'm% s, height% scm'% (name, height )) ** tuple is passed sequentially filled
% s: placeholder STR ()
% D-: decimal integer
% x: Hexadecimal
% f: float
specified length:
% 5D right alignment, inadequate fill the spaces left
% -5d - representing a left-aligned, is less than the right the default fill spaces
% 05d right-aligned, is less than 0 up left
floating point:
% F 6 default output valid data will be rounded
specified number of decimal places output% .2f --- reserved decimal place
'% 4.8f' 4 is representative of the length of the float, including decimals, only when the length of the string is greater than 4 to function. spaces make up less than four, the space can make up 0 with 04.8%
2. format
characteristics: format string methods
Filled pit sequence: {} placeholder
print ( '{} is the name, age {}' format ( 'Tom' , 20).)
Output:
The name is: Tom, age: 20
subscript fill hole:
Print ( 'The name is: {1}, age is: {0}'. format ( 20, 'Tom'))
output:
The name is: Tom, age: 20
variables filled pit: 'name is: {name}, age : '. the format (name =' {Age} Tom ', Age = 16)
Print (' name is: {name}, age: '. format (name =' {age} Tom ', age = 20))
output :
name is: Tom, age: 20
used in the variables
name = Ada
Age = 20
Print ( 'the name iS {name}, Age iS {Age}' the format (name = name, Age = Age).)
{:. 5} length = 5 specifies the output
string {:} 5 - left
value {:} 5 - right-aligned
using> <avoided string / numeric alignment of inconsistency
> right-aligned
<left
print ( 'name is: {0: * <11} \ n Age is: {1: *> 11} '. format ( 'Tom', 20))
Output:
The name is: Tom ********
age: 20 *********
intermediate aligned ^ insufficient length indicated by *
print ( 'name is: {0: * ^ 11} \ n Age is: {1: * ^ 11} '. format ( 'Tom', 20))
Output:
The name is: **** Tom ****
age: 20 **** *****
3. Format f ''
After python3.6 version supports
f 'name is: {name}, age: {age}'
= name 'Tom'
Age = 20 is
Print (F 'name is: {name}, age: {age}')
Transfer: https: //blog.csdn.net/u012941152/article/details/81778006