Python formatted output

Table 1.1. String Formatting code

format	description
%%	percent sign
% c	character and its ASCII code
%s	string
%d	signed integer (decimal)
%u	unsigned integer (decimal)
%o	unsigned integer (octal)
%x	None Symbol integer (hex)
% X	unsigned integer (16 uppercase characters)
% e	Floating-point number (scientific notation)
% E	floating-point numbers (scientific notation, E instead of e)
%f	floating-point numbers (with decimal point symbols)
%g	floating-point numbers (%e or%f based on value)
% g	floating-point numbers (similar to%g)
%p	pointer (memory address to print values in hexadecimal)
%n	stores the number of output characters into the next variable in the parameter list

Python print formatted output.

1. Print a string

Print ("His name is%s"% ("Aviad"))

Effect:

2. Printing integers

Print ("He is%d years old"% (25))

Effect:

3. Print floating-point numbers

Print ("His height is%f m"% (1.83))

Effect:

4. Print floating-point numbers (Specify the number of decimal places reserved)

Print ("His height is%.2f m"% (1.83))

Effect:

5. Specify the placeholder width

Print ("name:%10s age:%8d height:%8.2f"% ("Aviad", 25,1.83))

Effect:

6. Specify the placeholder width (left-justified)

Print ("name:%-10s age:%-8d height:%-8.2f"% ("Aviad", 25,1.83))

Effect:

7. Specify placeholders (only 0 placeholders?). ）

Print ("name:%-10s age:%08d height:%08.2f"% ("Aviad", 25,1.83))

Effect:

8. Scientific counting method

Format (0.0015, '. 2e ')

Effect:

Python formatted output