(C language) input a line of characters and count the number of English letters, spaces, numbers and other characters.

OK, Today, I will continue to explain a simple C The language code .

The meaning of this code is to enter a line of characters , Count the English letters 、 Space 、 The number of numbers and other characters .

We learn C The process is to practice constantly , Slowly , The more you write, the more proficient you become , Then you can write some simple code , Then learn some programming skills , Now , We are not satisfied with writing simple code , Instead, write some complex code , Our ability will gradually improve .

meanwhile , Some students may be very interested in writing code , For example, I , Some people are not very interested in writing code through learning , They prefer to debug hardware by hand , Writing code is mental work , Use your brain , And students who like doing things , They feel that building a hardware is more fulfilling , So it depends on your personal interests .

Like in College , We'd better take part in a competition , Or participate in a project , Practice your ability in the project , My main research direction is embedded software , And hardware are closely connected , And for me , I prefer to use my brain , It's programming , I'm not very cold about doing things , So find students who like to build hardware circuits , I'm in charge of programming . This is a team , For example, I'm taking Dachuang recently ,5 Famous students , A responsible code , Two are responsible for hardware , The other two are responsible for material compilation and video editing , A clear division of responsibilities , Attend to each one's own duties , Do your job well , Unity and cooperation , Is a good team .

At present, I'm using arduino Do something interesting , And now I'm writing C The blog of , Because I love it. , I find it interesting to share . I have opened a new topic ,Arduino application , Because what we have done so far has not been published , So keep it secret , When the results are registered , Gradually put on CSDN, Let's learn together , I feel very meaningful , Also a lot of fun .

OK, Today's code serves ：

#include "stdio.h"                                // The header file 
#include "conio.h"                                // The header file 
main()                                            // Main function entry 
{
  char c;                                         // Define character variables 
  int letters=0,space=0,digit=0,others=0;           // Four integer variables 
  printf("please input some characters\n");            // Print please input some characters
  while((c=getchar())!='\n')                   // The code mentioned before , Enter a string , End with a carriage return 
  {
    if(c>='a'&&c<='z'||c>='A'&&c<='Z')            // If it is lowercase or uppercase 
      letters++;                                     //letters For letters , Just +1
      else if(c==' ')                        // If it's a space 
        space++;                                //space+1, That's the space +1
        else if(c>='0'&&c<='9')                // If the input is 0-9 The number of 
          digit++;                                //digit+1, That's numbers +1
        else
          others++;                        // What you enter is something else others+1
  }
  printf("all in all:char=%d space=%d digit=%d others=%d\n",letters, 
  space,digit,others);      // Print the number of four types of input 
  getch();                  // Wait for one character , Enter a character and end the run 
}

OK, If you have some C The basis of language , This code is understandable , Because I think my notes are very clear , If you have any questions , Welcome to leave a message , Have a craigslist .

Here are the results of the run , use dev c++5.11 compiler ：

I just think sharing is a fun thing , Hope for you to learn C There is some help , Thank you for your browsing .