+export const Z_OK = 0;
+export const Z_STREAM_END = 1;
+//export const Z_NEED_DICT = 2;
+//export const Z_ERRNO = -1;
+export const Z_STREAM_ERROR = -2;
+export const Z_DATA_ERROR = -3;
+//export const Z_MEM_ERROR = -4;
+export const Z_BUF_ERROR = -5;
+//export const Z_VERSION_ERROR = -6;