数据结构的题目,用c语言编写下面的程序

#include #define max 100void findx(char shuru[], char T){ int x=0,i=0; while(shuru[i]!='\0') { if(shuru[i]==T) x++; i++; } printf("该句子中有%d个%c\n",x,T);}void chang(char shuru[],char T,char B){ int i=0; while(shuru[i]!='\0') { if(shuru[i]==T) shuru[i]=B; i++; } printf("%s\n",shuru);}void main(){ char shuru[max],t,b; int i=0,j=0; printf("请输入字符串："); gets(shuru); while(shuru[0]==' ')//删除前导空格 { i=0; while(shuru[i+1]!='\0')//字符串往前移动一次。 { shuru[i]=shuru[i+1]; i++; } shuru[i]='\0'; } i=1; while(shuru[i]!='\0')//字符间保持只有一个空格 { if(shuru[i]==' '&&shuru[i+1]==' ') { j=i; while(shuru[j+2]!='\0') { shuru[j+1]=shuru[j+2]; j++; } shuru[j+1]='\0'; i--; } i++; } i=0; while(shuru[i]!='\0')//删除后导空格 { i++; } while(shuru[i-1]==' ') { shuru[i-1]='\0'; i--; } printf("%s\n",shuru); while(1) { printf("请选择 1、查找；2、替换。\n"); scanf("%d",&j); if(j==10) scanf("%d",&j); switch(j) { case 1: printf("请输入要搜索的单词："); scanf("%c",&t); if(t==10) scanf("%c",&t); findx(shuru,t); break; case 2: printf("请输入要替换的单词："); scanf("%c",&t); if(t==10) scanf("%c",&t); printf("请输入要替换后的单词："); scanf("%c",&b); if(b==10) scanf("%c",&b); chang(shuru,t,b); break; default: printf("输入错误,请重新输入!\n"); } }}