怎么才能让char输出文字

Question

不知道为什么char不能显示名字

#include <stdio.h>
int main(void)
{
char firstname[4] = "Lux";
char lastname[4] = "Ren";

printf("My name is %s %s\n", firstname[4], lastname[4]);
printf("My first name is %s \n", firstname[4]);
printf("My last name is %s\n", lastname[4]);
printf("My full name is %s %s\n", firstname[4],lastname[4]);

return 0;

}

我想让运行结果能像My name is Lux Ren

类似于这种的

Answer 1

试试这个

#include <stdio.h>
int main(void)
{
    char firstname[3] = {'L','u','x'};
    char lastname[3] = {'R','e','n'};
    printf("My name is ");
    for(int i=0;i<3;i++)
    printf("%c", firstname[i], lastname[i]);
    printf("\n");
    printf("My first name is ");
    for(int i=0;i<3;i++)
    printf("%c", firstname[i]);
    printf("\n");
    printf("My last name is ");
    for(int i=0;i<3;i++)
    printf("%c", lastname[i]);
    printf("\n");
    printf("My full name is ");
    for(int i=0;i<3;i++)
    printf("%c", firstname[i], lastname[i]);
    printf("\n");
    return 0;
}