名称： cart
功能： 读取购物车数据
示例：
# HTTP请求方式
http://esite.likun.work/?act=cart&ajax=yes
# 模板调用方式1
<?php $cart = EsiteApp::app()->cart(); ?>
# 模板调用方式2
商品总数量{$cart['numbers']}, 商品总金额{$cart['money']}
# 备注：具体的参数可以通过模板变量调试方法输出到浏览器控制台
数据格式参考：
Array
(
[products] => Array
(
[0] => Array
(
[id] => 52
[user_id] => 1
[product_id] => 35
[numbers] => 1
[exts] => []
[price] => 320
[money] => 320
[utime] => 1582155624
[info] => Array
(
[id] => 35
[cat_id] => 14
[filename] =>
[name] => 哥弟女装2018春季新款拼色长袖针织开衫A400135
[price] => 320
[weight] => 0.18
[sn] =>
[title] => 哥弟女装2018春季新款拼色长袖针织开衫A400135
[keywords] => 藏蓝 S M L
[description] => 哥弟女装2018春季新款拼色长袖针织开衫A400135
[image] => Array
(
[0] => /esite_static/upload/image/day_180523/a693714497a9bbcf85aa7fc7254d3c87.jpg
[1] => /esite_static/upload/image/day_180523/0520fdcce9dfbeb702297a5e3f8c4093.jpg
[2] => /esite_static/upload/image/day_180523/03e96f5413a5200925dcd9784c24fd16.jpg
[3] => /esite_static/upload/image/day_180523/9cc2367a2809cda2b78e7c7a60aae0a2.jpg
[4] => /esite_static/upload/image/day_180523/dcfd9bf398652f1202f780ac2dba9afe.jpg
)
[edit_time] => 1532522276
[sort] => 0
[ext1] =>
[ext2] =>
[ext3] =>
[ext4] =>
[ext5] =>
[ext6] =>
[ext7] =>
[ext8] =>
[ext9] =>
[ext10] =>
[ext11] =>
[ext12] =>
[ext13] =>
[ext14] =>
[ext15] =>
[cat_unique_id] => 女士针织衫
[product_url] => /女士针织衫/35-product.html
[category_url] => /女士针织衫/p1-products.html
)
)
[1] => Array
(
[id] => 53
[user_id] => 1
[product_id] => 47
[numbers] => 1
[exts] => []
[price] => 400
[money] => 400
[utime] => 1582155661
[info] => Array
(
[id] => 47
[cat_id] => 15
[filename] =>
[name] => 哥弟女装2018春季新款中袖绑带衬衫8300044
[price] => 400
[weight] => 0.18
[sn] =>
[title] => 哥弟女装2018春季新款中袖绑带衬衫8300044
[keywords] => 白色 S M L
[description] => 哥弟女装2018春季新款中袖绑带衬衫8300044
[image] => Array
(
[0] => /esite_static/upload/image/day_180523/de2934cf7a907e7d1d48bb3d5f9225a0.jpg
[1] => /esite_static/upload/image/day_180523/49e538553a5256a817fa6b3f746e02c1.jpg
[2] => /esite_static/upload/image/day_180523/f8522373474c7c8f5935d3c893e4c03e.jpg
[3] => /esite_static/upload/image/day_180523/7966015060960ac2e3cb1a0e5688ecff.jpg
[4] => /esite_static/upload/image/day_180523/0355a1dec3ee5f6f30e41d277ed8c239.jpg
)
[edit_time] => 1527078327
[sort] => 0
[ext1] =>
[ext2] =>
[ext3] =>
[ext4] =>
[ext5] =>
[ext6] =>
[ext7] =>
[ext8] =>
[ext9] =>
[ext10] =>
[ext11] =>
[ext12] =>
[ext13] =>
[ext14] =>
[ext15] =>
[cat_unique_id] => 女士衬衫
[product_url] => /女士衬衫/47-product.html
[category_url] => /女士衬衫/p1-products.html
)
)
)
[numbers] => 2
[money] => 720
)