2.33 model - removal of the string two spaces .c

[Note: This program is verified using vs2013 version]

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#pragma warning(disable:4996)

int my_strRidSpace(char *dest,char *src, int *n){
    char *buf = src;
    int begin = 0;
    int end = strlen(buf) - 1;
    int len = 0;

    if (buf == NULL || dest==NULL){ return -1; }
    //从左边开始
    while(buf [the begin] == '  ' && buf [the begin] =! 0 ) {     // if the current character is not empty, but does not end 
        the begin ++; // position of the right moving a 
    }
     the while (buf [End] == '  ' && buf [end] =! 0 ) {     // if the current character is not empty, but no end 
        end--; // position of a left movement 
    } 
    len = end - the begin + . 1 ;
     * = n- len; 
    strncpy ( dest, buf + the begin, len); // strncpy (): copy the string dest, the specified length (not added back 0) 
    dest [len] = 0 ;
     / *Here own implementation of specified length copy string function 
    for (int I = 0; I <len; I ++) { 
        * dest = * (buf + the begin); 
        dest ++; 
        buf ++; 
    } 
    * / 

    return  0 ; 
} 


int main ( void ) { 
/ * find non-space character string length, two examples of block model: "asfqwfq" * /
     char * P = "    asdqwfrd     " ;
     char STR [ 50 ] = { 0 };
     int n-= 0 ;
     int RET = 0 ; 

    RET = my_strRidSpace (STR, P, & n-);
    if (ret != 0){
        printf("my_strRidSpace err %d", ret);
        return ret;
    }
    printf("str = %s\n", str);
    printf("n= %d\n", n);
　　


    printf("\n");
    system("pause");
    return 0;
}