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alt=\"Online shopping system Activity Diagram\" class=\"alignnone size-full wp-image-998\" decoding=\"async\" height=\"800\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/03\/online-shopping-system-activity-diagram.png\" width=\"556\"\/><\/p>\n<\/div>\n<p>\u4ee5\u4e0b\u662f\u70ba\u4f55\u6839\u64da\u7528\u4f8b\u7684\u7528\u4f8b\u63cf\u8ff0\u4f86\u5275\u5efa\u6d3b\u52d5\u5716\u6703\u66f4\u5bb9\u6613\u7684\u4e00\u4e9b\u539f\u56e0\uff1a<\/p>\n<ol>\n<li style=\"list-style-type: 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