what 5 of 36

For 36 numbers between 1 and 36, 5 are randomly selected to make the total number 100. I was a friend who asked me to write a method in excel: In the case of 36 numbers between 1 and 36, 5 were randomly selected to make the sum of 100: I am

This article mainly introduces how to generate a unique number in PHP. In this article, convert the hexadecimal value to 36 to obtain more than 60 million unique numbers that are not repeated, with the number of digits being 10 digits, if you need a

Link: http://chn.blogbeta.com/133.html Do you often hear people say "I really want to have a few more hours a day" or something like this? Of course, in reality, we only have 24 hours a day. Let's say that how people spend the 24 hours is totally

PHP generates unique number 36 binary non-repeating numberThe PHP implementation generates a unique number, using the 10 binary conversion 36 binary to get the unique number of 6000多万个, the number of digits is 10 bits.When a large number of data to

This article mainly introduces how to generate a unique number in PHP. in this article, convert the hexadecimal value to 36 to obtain more than 60 million unique numbers that are not repeated, with the number of digits being 10 digits, if you need a

When we have a large number of data to be numbered, and the number of digits limit, such as 5-bit license plate number, 10-bit ID number, order flow number, short URL, etc., we can use 36 to calculate the number of matched digits. We will 0-z (01234

When we want to number a large amount of data, and the number has a number of digits limit, such as 5-digit license plate number, 10-bit ID number, order serial number, short URL, etc., we can use the 36 binary to calculate the number of

When we want to numbers a large number of data, there is a limit on the number of digits, such as a five-digit license plate number, a ten-digit license number, order serial number, and a short URL, we can use the 36-digit system to calculate

Usage of 1.NULL __2018-4-13 Usage of ISNULL () Note the difference between SET ANSI_NULLS on/off; Perform the following two comparison results:SELECT location,*FROM mfsysproduct WHERE location IS NULL; SELECT location,*FROM

The diff command is a very important tool on Linux to compare the contents of a file, especially to compare two different versions of files to find the changes. Diff prints each line's changes on the command line. The latest version of diff also