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Today, I would like to talk to you about what is the end of a string flag, many people may not know much about it. In order to make you understand better, the editor has summarized the following for you. I hope you can get something according to this article.

The string ending flag is "\ 0", and 0 is the ASCII code of "\ 0", which is the first ASCII code, and the ASCII code of the number 0 is 48, so the writing program ends with "/ 0".

'\ 0' is the end flag of an array of strings.

And 0 is the ASCII code of'\ 0', which is the first ASCII code, and the ASCII code of the number 0 is 48, so the writing program should end with'\ 0', for example, char a [3] = {'hoggery char'\ 0'}, or directly ASCII [] = "hi", the compiler will think of it as an array of strings and end with'\ 0'.

When debugging the program, you can see that there is 0 in memory, which is the representation of ASCII code, and can also be seen as a unsigned int type.

Reference for the application of strings:

1. Join operation concat (s 1, 7, 2, 3, … Sn) is equivalent to s _ 1 / s _ 2 / s _ 3 +. + sn.

For example: concat ('11 years and 5') ='11 aaa'

2. Ask for a sub-string. Copy intercepts a substring of length l after the beginning of the first character in the string s.

Example: copy ('abdag',2,3) =' bda'

3. Delete the substring. The procedure Delete deletes a substring of length l after the beginning of the first character from the string s.

Ex.: sburetor abcdestructivedelete (smemo 2 and 3); as a result, it is a good example

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