Update README.md

README.md

@@ -1,2 +1,31 @@
-# f
+//字符类型判断
+#include <stdio.h>
+void count(char *s, int *digit, int *letter, int *other, int *lower, int *k)
+{   
+ int i;
+ for(i=0;i<10;i++) 
+ {  
+  if(s[i]>='a'&&s[i]<='z') 
+   (*letter)++;
+  else if(s[i]>='A'&&s[i]<='Z')
+  (*lower)++;
+  else if(s[i]>'0'&&s[i]<'9') 
+   (*digit)++;
+   else if(s[i]==' ')
+   (*k)++;
+  else         
+   (*other)++;    
+ }
+ 
+}
+
+int main() 
+{
+ int x=0,y=0,z=0,a=0,b=0; 
+ char ch[80];
+ printf("Enter a string:");
+ gets(ch);
+ count(ch,&x,&y,&z,&a,&b);
+ printf("小写字母有：%d个,大写字母有：%d个,数字有: %d个,空格有: %d个,其它符号有:%d个\n",x,y,z); 
+}