Python Quick Start:
Line continuation character \,
Note, not space after the line continuation character, must be directly wrap
Reserved words:
Note three: True False None, they are three
Data Type: 9 kinds of cores:
Numeric types: integers, floating point numbers, complex numbers
Byte type: strings, byte strings
Combination Type: collection of tuples, lists, dictionaries
Assignment and branch statement:
Assignment of synchronous assignment,
a, b = b, a and b can be realized a switching
O Python programs:
input () return value is a string
print () usage:
First: print ( "At this string") # default line break
Second: a plurality of output variables,
print("asdf" ,"jkl")
Then leave a space between the variable
Third Usage: mixing output
echo="A"
print ( "{} which is an output variable" .format (echo)
String format method:
.format () the front groove string
% (Arg) has a flag in front of the string
Echo program: # minimum input-output program
print(input())
Evaluation function eval:
It is used to remove both quotes
. 1 # the Author: ZCB 2 temperature = INPUT ( " temperature value with the Enter a symbol: >>> " ) . 3 TEMP = the eval (temperature [: -. 1 ]) . 4 IF temperature [-1] in [ ' C ' , ' C ' ]: . 5 F. = 32 + 1.8 * TEMP . 6 Print ( " temperature is converted {:} F. .2f " .format (F.)) . 7 elif temperature [-1] in [ ' F ' , ' F. ' ]: . 8 = C (TEMP-32) /1.8 . 9 Print ( " temperature is converted {:} .2f C " .format (C)) 10 the else : . 11 Print ( " input format error " )