How to use the stringc language?

In C language, strings can be represented using character arrays, where each element in the array represents a single character. Here are some common methods for manipulating strings:

1. Definition and initialization of strings:
2. Declare a character array of length 20.
   Declare and initialize a string with “Hello”.
3. Input and Output of Strings:
4. printf(“%s”, str); // Display string
   scanf(“%s”, str); // Enter string
5. Length of the string:
6. Get the length of the string.
7. Copying a string:
8. Copy the content of str to str2.
9. String concatenation:
10. Concatenate str2 to the end of str.
11. Comparison of strings:
12. Compare str and str2 and return an integer: less than 0 means str is less than str2, equal to 0 means they are equal, greater than 0 means str is greater than str2.
13. How to extract characters from a string:
14. Copy the first 3 characters of ‘str’ and paste them into ‘str2’.
15. Searching a string:
16. Search for the first occurrence of “ll” in the string str and return a pointer pointing to that position.

These are just some basic string manipulation methods, there are many more string-related functions that can be used.