Python string formatting in layman's text

The string formatting operator (%) is very similar to the string formatting of the printf () function in C, and even the symbols used are the same, all with percent sign (%), and all printf () format operations are supported. The syntax is as follows:

Format_String% String_to_convert

Format_String is a format-tagged string, in the form "%cdoe"; String_to_convert is a string to be formatted, and if it is more than two, it needs to be enclosed in parentheses.

Example of string format output:

CharA = 65charB = 66print ("ASCII code 65 for:%c"% CharA) print ("ASCII code 66 stands for:%c"% charb) Num1 = 0xef3num2 = 0xab03print (' converted to decimal: %u and%u '% (NUM1, Num2)) Num3 = 1500000print (' Convert to scientific notation:%e '% Num3)

Output:

ASCII code 65 means: A

ASCII code 66 means: B

Converted to decimal: 3827 and 43779, respectively

Convert to scientific notation: 1.200000e+06

Formatting characters can also be used with auxiliary symbols, which is very handy.

Auxiliary symbols, as shown in the following table:

Examples of auxiliary symbols:

NUM1 = 108print ("% #X"% Num1) Num2 = 234.567890print ("%.2f"% Num2)

Output:

0x6c

234.57

