在学习结构体，使用函数调用的过程中遇到一个问题

[flexman09]

#include <stdio.h>
struct complex_struct {double x,y;};
void print_complex(struct complex_struct z)
{
	if(z.x==0&&z.y==0)
	{
		printf("0");
	}
	else if(z.x==0&&z.y!=0)
	{
		printf("%.1fi",z.y);
	}
	else if(z.x!=0&&z.y==0)
	{
		printf("%.1f",z.x);
	}
	else
	{
	     printf("%.1f+%fi",z.x,z.y);
	}
	}
main()
{
struct complex_struct {double x,y;};
struct complex_struct z1;
z1.x=3.0;
z1.y=4.0;
print_complex(z1);
}

编译时出错了：错误如下：
E:\example\C\ComplexStruct.c:28:1: error: incompatible type for argument 1 of 'p
rint_complex'
E:\example\C\ComplexStruct.c:3:6: note: expected 'struct complex_struct' but arg
ument is of type 'struct complex_struct'
有人知道为什么吗？本人菜鸟，求指导，不胜感激!

[图灵狗]

#include <stdio.h>
struct complex_struct {double x,y;};
void print_complex(struct complex_struct z)
{
    if(z.x==0&&z.y==0)
    {
        printf("0");
    }
    else if(z.x==0&&z.y!=0)
    {
        printf("%.1fi",z.y);
    }
    else if(z.x!=0&&z.y==0)
    {
        printf("%.1f",z.x);
    }
    else
    {
         printf("%.1f+%fi",z.x,z.y);
    }
    }
main()
{
struct complex_struct z1;
z1.x=3.0;
z1.y=4.0;
print_complex(z1);
}

[flexman09]

引用 1 楼 turingo 的回复:

C/C++ code?12345678910111213141516171819202122232425262728#include <stdio.h>struct complex_struct {double x,y;};void print_complex(struct complex_struct z){ if(z.x==0&&z.y==0) ……

编译正确了，好厉害！谢谢了，我花了一个下午。最后才到论坛问的。

[flexman09]

引用 1 楼 turingo 的回复:

C/C++ code?12345678910111213141516171819202122232425262728#include <stdio.h>struct complex_struct {double x,y;};void print_complex(struct complex_struct z){ if(z.x==0&&z.y==0) ……

对了，我的问题出在哪啊?

[图灵狗]

main函数中多了struct complex_struct {double x,y;};

引用 3 楼 flexman09 的回复:

引用 1 楼 turingo 的回复:C/C++ code?12345678910111213141516171819202122232425262728#include <stdio.h>struct complex_struct {double x,y;};void print_complex(struct complex_struct z){ if(z.x==……