Lua table

table

 

 

 

 

 

 

 

 

 

 

 

 Code Example

- definition of an empty table 
tabMyArray = {}
 Print (tabMyArray)
 - Table Assignment 
tabMyArray {= . 11 , 22 is , 33 is }
 for K, V in  pairs (tabMyArray) do 
    Print (V)
 End 
- definition of a "key-value pair "type table 
tabMyArray2 = {str1 = " lift Ares " , str2 = " fishing helmets " , Str3 = " I am the police " }
 - output two kinds 
Print (tabMyArray2.str1)
 Print (tabMyArray2 [ " str2"])
print(tabMyArray2["str3"])
for k, v in pairs(tabMyArray2) do
    print(tabMyArray2[k])
end

 

The basic structure and access to the table

 

 

 

 

 

 

 

 

 

- the key output of the iterative type table 
tabMyArray5 = {str1 = " elevator God of War " , str2 = " Fishing with a helmet " , str3 = " I am the police ." } - defined tables, direct assignment 
tabMyArray5.str4 = " your husband a word ah " 
tabMyArray5 [ " str5 " ] = " shame " 
- output 
for I = . 1 , . 5  do      - using the # key iteration output table is not enough 
    Print (tabMyArray5 [ " STR " ..i ])
 End 
for k, v in pairs(tabMyArray5) do
    print(tabMyArray5[k])
end

 

Table Functions

 

 

 

- table function 
- to get the length of the table, 5.3 table.getn () function is not 
TAB1 = { " Hello " , " Goodbye " , " Good morning " }
 Print (# TAB1)     - . 3 
- Note: For table key-value pairs, the length can not be obtained with a # 
TAB2 NAME1 = = { " if things people " , NAME2 = " crown Xige " , NAME3 = " YJJ " }
 Print (TAB2 #)     - 0 

- table connection 
Print ( table.concat (tab1))    - hello goodbye good morning 
print( Table.concat (tab1, " | " ))    - Hello | Goodbye | Good Morning 
Print ( table.concat (tab1, " | " , 2 , 3 ))    - Goodbye | Good morning 

- removing table removal of the last is not specified 
TAB4 = { " Hello " , " JoJo " , " OK " }
 table.remove (TAB4)
 Print ( table.concat (TAB4, " | " )) - Hello | JoJo
table.remove(tab4,2)
print(table.concat(tab4," | ")) --hello | ok

--表的排序 table.sort()函数
tab5 = {60,8,9,40,35}   --数值
table.sort(tab5)
print(table.concat(tab5," | ")) --8 | 9 | 35 | 40 | 60

tab6={"river","zone", " BREAK " , " Room " , " hello " }
 table.sort (tab6)
 Print ( table.concat (tab6, " | " )) - Room | Hello | BREAK | River | Zone 

- the largest table value table.maxn () function that there is a problem 
- the Lua 5.3 deprecated function 
tab7 = { . 1 , . 3 , 10 , . 5 , . 6 , . 7 , . 8 , . 9 } 
RES1 = table.maxn (tab7)
Print (RES1)      - output is the length of the table 
- the custom function selecting the maximum value 
function GeTabMaxNumber (Table) 
    maxNum = 0 ;
     for K, V in  pairs (Table) do 
        IF (maxNum <Table [K]) the then 
            maxNum = Table [K]
         End 
    End 
   return maxNum;
 End 
maxNum = GeTabMaxNumber (tab7)
 Print (maxNum)