字符串原地压缩

#include <stdio.h>void yasuo( char *str );void main(){char str[40];gets( str );yasuo( str );printf("%s/n",str);}void yasuo( char *str ){int i,j=0,len=1; /*j用来将数组重新复制，len用来记载连续的个数*/for ( i=0; *(str+i)!='/0'; i++ ){if ( *(str+i) == *(str+i+1) ){len++;}else {*(str+j) = *(str+i);j++;if ( len >1){*(str+j) = len+48; /*加48是转换为字符型*/j++;len = 1;}}}*(str+j)='/0';}