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Summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2018

Summary of significant accounting policies

Schedule of estimated useful lives of property, equipment and software

Category		Estimated useful lives
Electronic equipment		3-5 years
Office equipment		5 years
Vehicles		5 years
Logistic and warehouse equipment		5-10 years
Leasehold improvement		Over the shorter of the expected life of leasehold improvements or the lease term
Software		3-5 years
Building		40 years
Building improvement		5-10 years

Schedule of estimated useful lives of intangible assets

Category		Estimated useful lives
Strategic Cooperation		5 years
Non-compete		5-8 years
Technology		2-7 years
Domain names and trademarks		5-20 years
Others		2-10 years

ASU 2016-18

Summary of significant accounting policies

Schedule of impacts on consolidated statements of cash flows

Year ended December 31, 2016		Previously reported		Adjustments		As Revised
		RMB		RMB		RMB
Net cash provided by operating activities		8,767,017		(526,646)		8,240,371
Net cash used in investing activities		(48,268,577)		2,787,142		(45,481,435)
Net cash provided by financing activities		40,699,471		—		40,699,471
Effect of exchange rate changes on cash, cash equivalents, and restricted cash		709,916		16,546		726,462
Net increase in cash, cash equivalents, and restricted cash		1,907,827		2,277,042		4,184,869

Year ended December 31, 2017		Previously reported		Adjustments		As Revised
		RMB		RMB		RMB
Net cash provided by operating activities		24,821,273		2,035,454		26,856,727
Net cash used in investing activities		(37,498,092)		(2,317,199)		(39,815,291)
Net cash provided by financing activities		19,234,985		—		19,234,985
Effect of exchange rate changes on cash, cash equivalents, and restricted cash		(641,534)		—		(641,534)
Net increase in cash, cash equivalents, and restricted cash		5,916,632		(281,745)		5,634,887

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