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#include <stdio.h> #include <string.h> int main() {int fun(char *p1);char str[30]={};char *p=str;int n;printf("请输入一串字符串:");gets(p);p=str;n=fun(p);printf("n该字符串的长度为:%dn",n);return 0; }int fun(char *p1) {int sum=0;while(*p1!='