[Halcon vision] array

        Halcon In the array , And C Language is similar to .

        （1） Variable type ：int,double,string Other types .

        （2） Variable length ： If the length is 1, Can be used as a normal variable , The first index value is 0, The maximum index value is the variable length minus 1.

        （3） Assignment symbol ： A colon plus an equal sign “     ：=     ”  .

*1. Array definition and assignment 

* Define an empty array 
Tuple:=[]

* Specify the data definition array 
Tuple1:=[1,2,3,4,5,6,7,8]
Tuple2:=['A','B','C','D']

* Change the element value of the specified position through the array subscript .
Tuple1[2]:=9

* Find the number of arrays 
Number:=|Tuple1|

* Merge array 
Union:=[Tuple1,Tuple2]

* Extract the elements with specified subscripts in the array 
T:=Tuple1[2]

*2. Array string operation 

* String merge 
A1:=' you '+' good '

* Take the string length 
Length:=strlen(A1)

*3. Trigonometric function operation and numerical function operation 

* The angle of arc 
Degree:=deg(1.36)

* Angle in radians 
Radian:=rad(90)

* For the minimum 
val_min:=min(Tuple1)

* For maximum 
val_max:=max(Tuple1)