[C]字符串读取，遇0结束

 

#include <stdio.h>
int main()
{
    char a[] = "The quick brown fox jumps over the lazy dog.";
    a[4] = '\0'; //a[] = "The \0uick brown fox jumps over the lazy dog."
    //或者a[4] = 0;
    printf("%s#\n", a); //字符串读到0，即结束
    return 0;
}

//所以结果为:The #

 

 

 

#include <stdio.h>
int main()
{
    // char a[] = "The quick brown fox jumps over the lazy dog.";
    // a[4] = '\0'; //a[] = "The \0uick brown fox jumps over the lazy dog."
    //或者a[4] = 0;
    char a[] = {'q', 'u', 'i', 'c', 'k', 'b', 'r', 'o', 'w', 'n'};
    printf("%s#\n", a); //字符数组: 如果没有0，读到结尾， 输出:quickbrown#
    a[4] = 0; //'k'换成0;
    printf("%s#\n", a); //字符串遇到0，就结束.输出:quic#
    return 0;
}

 

 

 

//思考题：输出结果为何？
#include <stdio.h>
int main()
{
    char a[] = "The \0uick brown fox jumps over the lazy dog.";
    printf("%s#\n", a);
    return 0;
}