c#调用非托管DLL出错的问题
原形
int CFCA_VerifySignedDataDetached(char *signature, long signatureLength, char* originalData, int *originalDataLength, char *certificate, long *certificateLength, HCFCAToolkit toolkitHandle);

signature 输入
signatureLength输入
originalData输入
originalDataLength输入
certificate输出
certificateLength输出
toolkitHandle输入

转换成
[DllImport( "CFCAToolkit.dll ", EntryPoint = "CFCA_VerifySignedDataDetached ", SetLastError = true,
CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)]
public static extern int CFCA_VerifySignedDataDetached(string signature, long signatureLength, string originalData, ref int originalDataLength, char[] certificate, ref long certificateLength, IntPtr toolkitHandle);

调用报AccessViolationException异常，似乎是certificate这个参数传递造成的，请高手指点！

[解决办法]
参数 char[] certificate 与原型中char *certificate不一致，你最好将char[] certificate
换成string certificate试一下
[解决办法]
使用unsafe吧
[解决办法]

参数 char[] certificate 与原型中char *certificate不一致，你最好将char[] certificate
换成string certificate试一下
[解决办法]
帮LZ顶
[解决办法]
char[] certificate换成string certificate