# C 语言标准库函数 strcpy

/*********************************************
 * @brief 复制字符串
 * @param dest 目标地址
 * @param src 源字符串
 * @return 目标地址
 ********************************************/
char* strcpy(char* restrict dest, const char* restrict src);

#include <stdio.h>
#include <string.h>

int main(void)
{
    char dest[10];

    strcpy(dest, "hello");
    printf("%s\n", dest);

    return 0;
}

hello
Never gon

char array[10] = "abcde";
strcpy(array + 1, array); // 复制

flowchart TD
    subgraph A["开始"]
        a ~~~ b ~~~ c ~~~ d ~~~ e ~~~ f
        style f stroke:none,fill:transparent,color:transparent
    end

    subgraph B["array[0] 复制到 array[1]"]
        B1[a] ~~~ B2[a] ~~~ B3[b] ~~~ B4[c] ~~~ B5[d] ~~~ B6
        B1 --> B2
        style B6 stroke:none,fill:transparent,color:transparent
    end

    subgraph C["array[1] 复制到 array[2]"]
        C1[a] ~~~ C2[a] ~~~ C3[a] ~~~ C4[c] ~~~ C5[d] ~~~ C6
        C2 --> C3
        style C6 stroke:none,fill:transparent,color:transparent
    end

    subgraph D["array[2] 复制到 array[3]"]
        D1[a] ~~~ D2[a] ~~~ D3[a] ~~~ D4[a] ~~~ D5[d] ~~~ D6
        D3 --> D4
        style D6 stroke:none,fill:transparent,color:transparent
    end

    subgraph E["array[3] 复制到 array[4]"]
        E1[a] ~~~ E2[a] ~~~ E3[a] ~~~ E4[a] ~~~ E5[a] ~~~ E6
        E4 --> E5
        style E6 stroke:none,fill:transparent,color:transparent
    end

    subgraph F["array[4] 复制到 array[5]"]
        F1[a] ~~~ F2[a] ~~~ F3[a] ~~~ F4[a] ~~~ F5[a] ~~~ F6[a]
        F5 --> F6
    end

    A --> B --> C --> D --> E --> F

    classDef SUB fill:#212121,color:#fefefe,stroke:#e91e63
    class A SUB
    class B SUB
    class C SUB
    class D SUB
    class E SUB
    class F SUB