C language ' 0 ', ' 0 ', 0 difference __c language

A string constant is one or more sequence of characters, such as "0" and "search", enclosed by a pair of double quotes;

A single character with a single quote, ' Constants ' and ' 0 ';

Character constants can be used as integers to participate in related operations in the program,

In C, characters are stored in their corresponding ASCII code, one character for one byte.

The first ASCII code, the pair is 0, the corresponding character Fu Shi (null), that is, ' the ' null ' character.

Search_for[strlen (search_for) -1]= ' the ".//Hi-C language

The flag to determine whether a string is closed is to see if a ' yes ' is encountered, and if ' yes ' is encountered, the end of the string.

The ASCII code corresponding to the character ' 0 ' is 48,48 the hexadecimal number is 0x30,

The word constants amount ' 0 ' can participate in the relevant operation in the program like the reshaping constant 1 sample.

For example, converting characters to numbers is often used, such as converting ' 8 ' to a cosmetic constant of 8, ' 8+ ' 0 '.