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v3.19.1

Property, equipment and software, net | 12 Months Ended
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Dec. 31, 2018
Property, equipment and software, net |
Property, equipment and software, net | 11.Property, equipment and software, net Property, equipment and software, net consist of the following:
|  | As of December 31,
|  | 2017 |  | 2018
|  | RMB |  | RMB
Electronic equipment |  | 7,172,694 |  | 13,780,685
Building and building improvement |  | 5,855,920 |  | 9,118,708
Logistic and warehouse equipment |  | 2,693,969 |  | 3,912,356
Vehicles |  | 1,164,376 |  | 1,240,001
Leasehold improvement |  | 827,408 |  | 1,318,735
Office equipment |  | 287,282 |  | 406,534
Software |  | 203,848 |  | 250,920
Total |  | 18,205,497 |  | 30,027,939
Less: Accumulated depreciation |  | (5,631,319) |  | (8,945,101)
Net book value |  | 12,574,178 |  | 21,082,838
Depreciation expenses were RMB1,751,086, RMB2,310,065 and RMB3,533,483 for the years ended December 31, 2016, 2017 and 2018, respectively.

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- Definition The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 + Details
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