This link: https://www.cnblogs.com/zyuanlbj/p/11910913.html
% S placeholder
= name ' boats '
Print ( ' name is: S% ' % name)
format () function
Format:. "{} {}" Format (value, value)
Example:
= name ' Tom '
Age =. 7
Hobby = ' play the slides! '
Money = 8.5
the Message = ' {} {} years old this year, like most {}, there pocket money: {} ' .format (name, Age, Hobby, Money)
Print (the Message) # Tom is 7 years old, most likes to play slippery slides! There pocket money: $ 850
Python conversion specifier
| Conversion specifier | Explanation |
| %d，%i | Convert integer to signed decimal notation |
| %O | Integer converted to signed octal form |
| %x，%X | Signed integer is converted to hexadecimal form |
| %e | Converted to a floating (e lowercase) represented by the scientific notation |
| %E | Converted to a floating (E uppercase) represented by the scientific notation |
| %f，%F | Converted to decimal floating-point number |
| %g | Or intelligent selection using% f% e format |
| %G | Smart or choose to use% F% E format |
| %c | Formatting characters and their ASCII code |
| %r | Using the repr () converts a string variable or expression |
| %s | Use str () converts a string variable or expression |
Example:
# % D digit digital
age = 18
Print ( ' age: D% ' % Age)
Age = 18.5 # int (18.5) ---> 18 is rounded
Print ( ' age: D% ' % Age)
year = 2019
Print ( ' this year is:% 02d ' % year) # still 2019 but can be set-digit% f
# Behind% f float is the number of decimal places and rounded
salary=8899.32895
Print ( ' My salary is:.% 2F ' % salary)