/* zlib.h -- interface of the 'zlib' general purpose compression library
version 1.2.11, January 15th, 2017
Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
Jean-loup Gailly Mark Adler
jloup@gzip.org madler@alumni.caltech.edu
The data format used by the zlib library is described by RFCs (Request for
Comments) 1950 to 1952 in the files http://tools.ietf.org/html/rfc1950
(zlib format), rfc1951 (deflate format) and rfc1952 (gzip format).
*/
#ifndef ZLIB_H
#define ZLIB_H
#include "zconf.h"
#ifdef __cplusplus
extern "C" {
#endif
#define ZLIB_VERSION "1.2.11"
#define ZLIB_VERNUM 0x12b0
#define ZLIB_VER_MAJOR 1
#define ZLIB_VER_MINOR 2
#define ZLIB_VER_REVISION 11
#define ZLIB_VER_SUBREVISION 0
/*
The 'zlib' compression library provides in-memory compression and
decompression functions, including integrity checks of the uncompressed data.
This version of the library supports only one compression method (deflation)
but other algorithms will be added later and will have the same stream
interface.
Compression can be done in a single step if the buffers are large enough,
or can be done by repeated calls of the compression function. In the latter
case, the application must provide more input and/or consume the output
(providing more output space) before each call.
The compressed data format used by default by the in-memory functions is
the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped
around a deflate stream, which is itself documented in RFC 1951.
The library also supports reading and writing files in gzip (.gz) format
with an interface similar to that of stdio using the functions that start
with "gz". The gzip format is different from the zlib format. gzip is a
gzip wrapper, documented in RFC 1952, wrapped around a deflate stream.
This library can optionally read and write gzip and raw deflate streams in
memory as well.
The zlib format was designed to be compact and fast for use in memory
and on communications channels. The gzip format was designed for single-
file compression on file systems, has a larger header than zlib to maintain
directory information, and uses a different, slower check method than zlib.
The library does not install any signal handler. The decoder checks
the consistency of the compressed data, so the library should never crash
even in the case of corrupted input.
*/
typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size));
typedef void (*free_func) OF((voidpf opaque, voidpf address));
struct internal_state;
typedef struct z_stream_s {
z_const Bytef *next_in; /* next input byte */
uInt avail_in; /* number of bytes available at next_in */
uLong total_in; /* total number of input bytes read so far */
Bytef *next_out; /* next output byte will go here */
uInt avail_out; /* remaining free space at next_out */
uLong total_out; /* total number of bytes output so far */
z_const char *msg; /* last error message, NULL if no error */
struct internal_state FAR *state; /* not visible by applications */
alloc_func zalloc; /* used to allocate the internal state */
free_func zfree; /* used to free the internal state */
voidpf opaque; /* private data object passed to zalloc and zfree */
int data_type; /* best guess about the data type: binary or text
for deflate, or the decoding state for inflate */
uLong adler; /* Adler-32 or CRC-32 value of the uncompressed data */
uLong reserved; /* reserved for future use */
} z_stream;
typedef z_stream FAR *z_streamp;
/*
gzip header information passed to and from zlib routines. See RFC 1952
for more details on the meanings of these fields.
*/
typedef struct gz_header_s {
int text; /* true if compressed data believed to be text */
uLong time; /* modification time */
int xflags; /* extra flags (not used when writing a gzip file) */
int os; /* operating system */
Bytef *extra; /* pointer to extra field or Z_NULL if none */
uInt extra_len; /* extra field length (valid if extra != Z_NULL) */
uInt extra_max; /* space at extra (only when reading header) */
Bytef *name; /* pointer to zero-terminated file name or Z_NULL */
uInt name_max; /* space at name (only when reading header) */
Bytef *comment; /* pointer to zero-terminated comment or Z_NULL */
uInt comm_max; /* space at comment (only when reading header) */
int hcrc; /* true if there was or will be a header crc */
int done; /* true when done reading gzip header (not used
when writing a gzip file) */
} gz_header;
typedef gz_header FAR *gz_headerp;
/*
The application must update next_in and avail_in when avail_in has dropped
to zero. It must update next_out and avail_out when avail_out has dropped
to zero. The application must initialize zalloc, zfree and opaque before
calling the init function. All other fields are set by the compression
library and must not be updated by the application.
The opaque value provided by the application will be passed as the first
parameter for calls of zalloc and zfree. This can be useful for custom
memory management. The compression library attaches no meaning to the
opaque value.
zalloc must return Z_NULL if there is not enough memory for the object.
If zlib is used in a multi-threaded application, zalloc and zfree must be
thread safe. In that case, zlib is thread-safe. When zalloc and zfree are
Z_NULL on entry to the initialization function, they are set to internal
routines that use the standard library functions malloc() and free().
On 16-bit systems, the functions zalloc and zfree must be able to allocate
exactly 65536 bytes, but will not be required to allocate more than this if
the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, pointers
returned by zalloc for objects of exactly 65536 bytes *must* have their
offset normalized to zero. The default allocation function provided by this
library ensures this (see zutil.c). To reduce memory requirements and avoid
any allocation of 64K objects, at the expense of compression ratio, compile
the library with -DMAX_WBITS=14 (see zconf.h).
The fields total_in and total_out can be used for statistics or progress
reports. After compression, total_in holds the total size of the
uncompressed data and may be saved for use by the decompressor (particularly
if the decompressor wants to decompress everything in a single step).
*/
/* constants */
#define Z_NO_FLUSH 0
#define Z_PARTIAL_FLUSH 1
#define Z_SYNC_FLUSH 2
#define Z_FULL_FLUSH 3
#define Z_FINISH 4
#define Z_BLOCK 5
#define Z_TREES 6
/* Allowed flush values; see deflate() and inflate() below for details */
#define Z_OK 0
#define Z_STREAM_END 1
#define
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根据商品id指定需要抓取的商品范围,抓取指定商品详情页价格、库存、运费信息,存入数据库作数据分析和参考 使用步骤: 1.搭建python环境,配置好环境变量 2.配置数据库环境,根据本地数据库连接修改alibaba.py中的数据库初始化参数 3.下载自己浏览器版本的浏览器驱动(webdriver),并将解压后的驱动放在python根目录下 4.执行database/DDL中的脚本进行数据库建表 5.将alibaba.py中itemids参数替换成自己需要抓取的商品id,找商品id的方法可参考url参数的规则 6.运行alibaba.py,开始需要手动滑动验证条验证,控制台和数据库观察结果 报错提示: 1.如果浏览器窗口能打开但没有访问url,报错退出,检查浏览器驱动的版本是否正确 2.代码中有红色波浪线,检查依赖包是否都安装完 3.程序运行中途报错,可能是出现滑动验证条导致页面捕捉不到元素,中途手动完成验证即可
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python爬虫1688一件代发电商工具(二)-抓取商品详情页价格库存运费信息(selenium) (1116个子文件)
DDL 498B
python.exe 513KB
normalizer.exe 104KB
margins.exe 104KB
excel-formula.g 11KB
.gitignore 50B
zlib.h 94KB
xsltInternals.h 56KB
parser.h 39KB
tree.h 37KB
xmlerror.h 36KB
schemasInternals.h 26KB
xmlwriter.h 21KB
xpathInternals.h 19KB
lxml.etree_api.h 17KB
etree_api.h 17KB
parserInternals.h 17KB
xpath.h 16KB
zconf.h 16KB
etree_defs.h 15KB
globals.h 14KB
valid.h 13KB
xmlreader.h 12KB
xmlIO.h 10KB
xmlunicode.h 10KB
HTMLparser.h 9KB
lxml.etree.h 9KB
etree.h 8KB
xmlversion.h 8KB
encoding.h 8KB
xsltutils.h 8KB
trio.h 7KB
xmlschemas.h 7KB
extensions.h 7KB
triodef.h 7KB
hash.h 6KB
transform.h 6KB
relaxng.h 6KB
xmlmemory.h 6KB
xmlstring.h 5KB
xmlregexp.h 5KB
chvalid.h 5KB
debugXML.h 5KB
xlink.h 5KB
SAX2.h 5KB
catalog.h 5KB
xmlschemastypes.h 5KB
entities.h 5KB
schematron.h 4KB
SAX.h 4KB
xmlautomata.h 4KB
xsltconfig.h 4KB
nanoftp.h 4KB
HTMLtree.h 4KB
xsltexports.h 3KB
exsltexports.h 3KB
xpointer.h 3KB
list.h 3KB
variables.h 3KB
DOCBparser.h 3KB
c14n.h 3KB
exslt.h 3KB
xinclude.h 3KB
win32config.h 3KB
documents.h 3KB
uri.h 3KB
security.h 3KB
pattern.h 3KB
xmlsave.h 2KB
templates.h 2KB
numbersInternals.h 2KB
nanohttp.h 2KB
functions.h 2KB
xslt.h 2KB
threads.h 2KB
imports.h 2KB
dict.h 2KB
namespaces.h 2KB
extra.h 2KB
xsltlocale.h 2KB
xmlexports.h 1KB
exsltconfig.h 1KB
xmlmodule.h 1KB
keys.h 1KB
attributes.h 930B
preproc.h 892B
libxslt.h 861B
libexslt.h 675B
lxml-version.h 74B
tb_tools.iml 291B
INSTALLER 4B
INSTALLER 4B
INSTALLER 4B
INSTALLER 4B
INSTALLER 4B
INSTALLER 4B
INSTALLER 4B
INSTALLER 4B
INSTALLER 4B
INSTALLER 4B
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