how many bytes in one megabyte

[PHP] uses the openssl_random_pseudo _ bytes and base64_encode functions to generate a random string. the openssl_random_pseudo _ bytes function is used to generate a specified number of random bytes. Therefore, when using it to generate random strings, you also need to use the base64_encode function. As follows: public static function getRandomString($length =

Label: style HTTP color ar OS for SP strong Div How many bytes does an int count? The answer to this question is 4. However, the number of bytes of int is related to the machine environment. As you can see, the typical data type sizes match the ilp32ll model, which is what most compilers adhere to on 32-bit platforms. the lp64 model is the de facto standard for compilers that generate code for 64-bi

Convert a string to an ASCII array. If it is a Chinese byte code, it is ASCII code 63, that is "? ", So you can determine Class StringOP { /// /// Obtain the actual length (in bytes) of the Chinese and English mixed string) /// /// String to be retrieved /// The actual length of the string (number of bytes) Public int getStringLength (string str) { If (str. Equals (string. Empty )) Return 0; Int strlen = 0;

Preface The most important new feature of Python 3 is probably a clearer distinction between text and binary data. Text is always Unicode, represented by the STR type, and binary data is represented by the bytes type. Python 3 does not mix str and bytes in any implicit way, which makes the distinction between them particularly clear. You cannot stitch strings and byte packets, search for strings in a byte

The wc (WordCount) command in Linux is used to count the number of bytes, number of words, and number of rows in a specified file, and the statistical results are displayed and output. In Linux, the wc (Word Count) command is used to Count the number of bytes, number of words, and number of lines in a specified file, and display the statistical results. 1. command format:Wc [option] file... 2. command funct

8 bits (bit) = 1 bytes (byte), 1024 bytes =1kb;Mentions the byte, must again mention "the word" This unit of measure: "The word" consists of a number of bytes, the number of bits of the word is called word length, words are the number of binary numbers corresponding to the lengths. Different machines have different lengths of word. For example, a 8-bit machine, i

If no mark is used in a network stream, you do not know whether the stream ends. However, when reading the network stream, we can know how many bytes can be read this time by using inputstream. available (), but it must be called at least once after Read (), that is, the available method must be called after Read, otherwise it will only get zero value. Note: here the stream in network transmission is like this, but the file stream is not like this. Yo

1. Define several variables to store the number of bytes of each data type. # Include Unsigned char a, B, c, d, e, f, g; Main () { A = sizeof (char ); B = sizeof (short INT ); C = sizeof (INT ); D = sizeof (long ); E = sizeof (long INT ); F = sizeof (float ); G = sizeof (double ); While (1 ); } 2. view the storage address of each variable. View --- symbols window. 3. view the stored values of each address. View --- Memor