20 Basics of Python programming

Other common methods of strings:

Ord (char) # returns the code value corresponding to the char character, which can be a Chinese character

Chr (x) # Enter a Unicode code to return the corresponding character

eval (str) # returns the contents of Str in the form of code

REPR (x) returns the object's str format, suitable for machine execution

String formatting

% formatting:

%[flags][width][.precision]typecode

Format formatted:

[Fill] [Align] [Sign] [#] [Width] [. Precision] [Type]

Fill: Filling symbol

Align: alignment < Align Left,> right, ^ center align

Sign: Display symbol, + display plus sign,-display symbol

#: 0b,0o,0x is displayed for 2,4,8

Width: Wide

, thousands of bits

. Precision: Accuracy

Type:s string D shaping f floating-point type

Bytes:

Create bytes:

B1 = B ' Hello ' # Add a B before the string

B2 = Byte ("Chinese", ' utf-8 ')

To set the encoding format:

#-*-Coding:utf-8-*-

Import Sys

Sys.setdefaultencoding (' Utf-8 ') #修改系统默认编码格式

String to byte: ' Chinese '. Endcode (' Utf-8 ')

byte-to-string: B ' \xe4\xb8\xad\xe6\x96\x87 '. Decode (' Utf-8 ')

20 Basics of Python programming