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Changes for page 01 Lua Functions

Last modified by Theodore Xu on 2023/10/26 10:51
From version 9.2
edited by Stone Wu
on 2022/07/25 11:32
Change comment: Update document after refactoring.
To version 20.1
edited by Theodore Xu
on 2023/08/25 09:49
Change comment: There is no comment for this version

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Parent
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1 -V-BOX.V-Net.04 Lua Script.WebHome
1 +V-BOX.V-Net.Manual.04 Lua Script.WebHome
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Stone
1 +XWiki.AiXia
Content
... ... @@ -1507,8 +1507,19 @@
1507 1507  ** addr_getstring("@W_HSW191",17)
1508 1508  * Obtaining ICCID (read only)
1509 1509  ** addr_getstring("@W_HSW225",15)
1510 +* (((
1511 +TSAP settings of Siemens LOGO PLC*
1510 1510  
1511 1511  (((
1514 +addr_setword("@W_0#HSW1200",8192) means set the Local TSAP as 20.00
1515 +)))
1516 +
1517 +* (((
1518 +addr_setword("@W_0#HSW1201",4096) means set the Remote TSAP as 10.00
1519 +)))
1520 +)))
1521 +
1522 +(((
1512 1512  == **Power-down storage area (HAW/HAX)** ==
1513 1513  
1514 1514  The system storage area (HAW) is used for the system power-down hold registers:
... ... @@ -1861,186 +1861,8 @@
1861 1861  
1862 1862  Failed: nil
1863 1863  
1864 -= **11 MySQL database operation** =
1875 += **11 Message summary algorithm** =
1865 1865  
1866 -== **luaMySql.init(string sourcename, string username, string password, string host, number port, string character)** ==
1867 -
1868 -**Function:** Configure database connection parameters
1869 -
1870 -**Parameter:**
1871 -
1872 -sourcename: the name of database
1873 -
1874 -username: the username of the connection
1875 -
1876 -password: the password of the connection
1877 -
1878 -host: the host name of the connection
1879 -
1880 -port: the host port of the connection
1881 -
1882 -character: the character set of the connection
1883 -
1884 -**Return:**
1885 -
1886 -Succeed: string
1887 -
1888 -Failed: multi
1889 -
1890 -== **luaMySql.exec(string statement)** ==
1891 -
1892 -**Function:** Execute the given SQL statement without returning the result set (add, delete, change)
1893 -
1894 -**Parameter:**
1895 -
1896 -statement: the given SQL statement
1897 -
1898 -**Return:**
1899 -
1900 -Succeed: status: returns the number of rows affected by SQL statement execution.
1901 -
1902 -Failed: nil, errorString
1903 -
1904 -== **luaMySql.execWithResult(string statement)** ==
1905 -
1906 -**Function:** Execute the given SQL statement returning the result set (check)
1907 -
1908 -**Parameter:**
1909 -
1910 -statement: the given SQL statement
1911 -
1912 -**Return:**
1913 -
1914 -Succeed: table: returns the result set
1915 -
1916 -Failed: nil, errorString
1917 -
1918 -**For example:**
1919 -
1920 -{{code language="LUA"}}
1921 -mysql = require"mysqlclient"
1922 -
1923 -function DataInitRight()
1924 -
1925 -local dbName = "db_lua1"
1926 -
1927 -local user = "root"
1928 -
1929 -local pwd = "123456"
1930 -
1931 -local host = "192.168.56.186"
1932 -
1933 -local port = 3306
1934 -local character = "UTF8"
1935 -
1936 -mysql.init(dbName, user, pwd, host, port, character)
1937 -
1938 -end
1939 -
1940 -function ExecFunc()
1941 -
1942 -status, errorString = mysql.exec("delete from tb_lua1 where mykey =
1943 -
1944 -10;")
1945 -
1946 -if nil == status then
1947 -
1948 -print("ExecFunc() error:", errorString)
1949 -
1950 -return -1
1951 -
1952 -else
1953 -
1954 -print("the number of rows affected by the command:", status)
1955 -
1956 -end
1957 -
1958 -return 0
1959 -
1960 -end
1961 -
1962 -function ExecWithResultFunc()
1963 -
1964 -status, errorString = mysql.execWithResult("select * from tb_lua1;")
1965 -
1966 -if nil == status then
1967 -
1968 -print("ExecWithResultFunc() error:", errorString)
1969 -
1970 -return -1
1971 -
1972 -else
1973 -
1974 -print("ExecWithResultFunc()
1975 -
1976 -success
1977 -
1978 -: status
1979 -
1980 -type
1981 -
1982 -=
1983 -
1984 -",
1985 -
1986 -type(status))
1987 -
1988 -print("ExecWithResultFunc() success : status len = ", #status)
1989 -
1990 -local num = #status
1991 -
1992 -local i = 1
1993 -
1994 -if num > 0 then
1995 -
1996 -for i = 1, num, 1 do
1997 -
1998 -local var = string.format("select result[%d] :mykey = %d,
1999 -
2000 -value = %s", i, status[i].mykey, status[i].value)
2001 -
2002 -print(var)
2003 -
2004 -end
2005 -
2006 -end
2007 -
2008 -print("---------------")
2009 -
2010 -end
2011 -
2012 -return 0
2013 -end
2014 -
2015 -function luaMysql_apiTest.main()
2016 -
2017 -print("script running ...")
2018 -
2019 -DataInitRight()
2020 -
2021 ---use exec demo
2022 -
2023 -if ExecFunc() < 0 then
2024 -
2025 -return
2026 -
2027 -end
2028 -
2029 ---use execWithResult demo
2030 -
2031 -if ExecWithResultFunc() < 0 then
2032 -
2033 -return
2034 -
2035 -end
2036 -
2037 -print("script running success")
2038 -
2039 -end
2040 -{{/code}}
2041 -
2042 -= **12 Message summary algorithm** =
2043 -
2044 2044  == **hmac(string hash_func, string key, string message)** ==
2045 2045  
2046 2046  **Function:** HMAC calculate