字符数组:数组中存放的是字符类型的变量
字符串:由0个或者任意多个字符组成。“\0“结尾的序列
" "(无空格) -->空串
"abc"-->字符串
#includeint main(void) { // 字符数组 (定义并初始化) char s1[5] = {'1','2','3','a','b'}; // 字符串数组 (定义并初始化) char s2[5] = "helo"; char s3[5] = {'h', 'e', 'l', 'o', '\0'}; char s4[5] = {"helo"}; char s5[] = "helo"; char s6[100] = "hi"; //打印输出 for (int i = 0; i