统计字符串个数(简单)
#include<stdio.h>int put2(const char * string);int main(void){ printf("%d",put2("abcde")); return 0;}int put2(const char * string){ int count=0; while(*string) { putchar(*string++); count++; } putchar('\n');/*加不加效果一样,不能吸收'\n'.*/ return count;}