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按顺序检索错误参数。
public size_t ULErrorInfoParameterAt( ul_error_info const * errinf, ul_u_short parmNo, char * buffer, size_t bufferSize )
返回存储参数所需的大小(以字节为单位),或如果顺序无效时返回零。如果返回的值大于 bufferSize,则参数会被截断。