"Python" "sequence"

1. Array

1?? and list

First introduce

From array Import array

The list is then passed directly to the array parameter into the constructor. (I don't know if it's called a constructor)

Np.array (' d ', [+])

Turn back then call the ToList function

_.tolist ()

2?? Enumerations & Common Methods

Array Use method:
Type code C type Minimum size in bytes
' C ' character 1
' B ' signed integer 1
' B ' unsigned integer 1
' U ' Unicode character 2
' H ' signed integer 2
' H ' unsigned integer 2
' I ' signed integer 2
' I ' unsigned integer 2
' L ' signed integer 4
' L ' unsigned integer 4
' F ' floating point 4
' d ' floating point 8
From array Import *
Create an array of type Interger
Myarr = Array ("L") <--------Creating arrays
Myarr.append (3) <----------------append elements
Myarr.append (1)
Myarr.append (8)

Delete Last
Myarr.pop ()
Deletes the first specified x
Myarr.remove (x)

Take the value of the array ..... by subscript
NUM1 = Myarr[0] <-----------first value

Specify the location, .... Inserting values

Myarr.insert (6,10) 6 means subscript .... 10 indicates the value to insert


Array reverse order .....
Myarr.reverse ()

"Python" "sequence"