Count the length of the entered string and the number of occurrences of a character.

<> output conforms to the example, hope

Source code: include

int main() 0-9 counts the number of characters per number.

fgets(s, 100, stdin);Read in a line of characters, including line breaks''

while (s[i] !n'When a line break is reached, it is changed to a null character'\0'You can also.

if (s[i] >0' &s[i] <9') numeric characters.

cnt[s[i] -0'] + counts the number of corresponding characters.

i++;for (i = 0; i < 10;i++) outputs the number of numeric characters that appear.

if (cnt[i] >0)

printf("%d: %d", i, cnt[i]);

return 0;

1. We define a function before the main function.

2. Then we can start writing and enter the whole framework first.

3. Then we can start the output with the AND loop.

4. You can also use pointer variables to write using ordinary variables.

5. Here we will write as a pointer variable.

6. After the writing is completed, we will be able to go back to the main function and call it directly.

Write a program in C, define a function, return the number of occurrences of 26 English letters (case-insensitive) in a string, call this function in the main function and output the word count (only the main function is allowed to call the output function).

Hello、Use C language to write a program,Define a function,Return the number of occurrences of 26 English letters (case-insensitive) in a string,Call this function in the main function and output the word count statistics (only the main function is allowed to call the output function)Please understand, I wish you a happy life.

int fun(char *s)

return k;

Function description: It is done with a loop nesting, the termination condition of the outer loop is the end of the string to be found, and the inner loop only needs to compare the characters of the searched string with the current characters of the current string to be found one by one, and when there are characters that do not want to wait, the inner loop is directly ended, and the t[j] of the inner loop is judged to be '0', for the sake of the match.