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C 字符串 strcat() 函数

❮ 字符串函数


示例

连接字符串

char myStr[20] = "Hello";
strcat(myStr, " World!");
printf("%s", myStr);
自己尝试 »

定义和用法

strcat() 函数将一个字符串的副本附加到另一个字符串的末尾。

strcat() 函数在 <string.h> 头文件中定义。

注意: 确保字符串为要附加的字符预留了足够的空间,否则它可能会开始写入属于其他变量的内存。


语法

strcat(void * destination, void * source);

参数值

参数 描述
destination 必需。指向要附加到的字符串的指针。源字符串的副本将附加在第一个空终止字符的位置。
source 必需。指向要从中复制的字符串的指针。将复制从字符串开头到第一个空终止字符的数据。

技术细节

返回值 一个指向目标字符串的 char 类型指针。

❮ 字符串函数


相关页面

C 字符串教程

C 字符串函数教程


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