開車時，如果車輛是自行取餐，系統可能會將預先定義的金額計入車資中；如果為外送車輛，則資訊會扣除。此訊息定義了這類金額。詳情請參閱《loadDemands》。
| JSON 表示法 |
|---|
{ "amount": string } |
| 欄位 | |
|---|---|
amount |
執行相應造訪記錄的車輛負載量有所不同。由於為整數，建議使用者選擇適當的單位，以免喪失精確度。必須大於 0。 |
Load
除非另有註明，否則本頁面中的內容是採用創用 CC 姓名標示 4.0 授權，程式碼範例則為阿帕契 2.0 授權。詳情請參閱《Google Developers 網站政策》。Java 是 Oracle 和/或其關聯企業的註冊商標。
上次更新時間：2025-08-31 (世界標準時間)。
[null,null,["上次更新時間：2025-08-31 (世界標準時間)。"],[[["\u003cp\u003eThe \u003ccode\u003eShipment.Load\u003c/code\u003e message defines the amount added or subtracted from a vehicle's load during a pickup or delivery.\u003c/p\u003e\n"],["\u003cp\u003eThis amount is represented by the \u003ccode\u003eamount\u003c/code\u003e field in the JSON representation, which is a string formatted as an \u003ccode\u003eint64\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eamount\u003c/code\u003e value must be non-negative and users should choose an appropriate unit to maintain precision.\u003c/p\u003e\n"],["\u003cp\u003eRefer to \u003ccode\u003eloadDemands\u003c/code\u003e for how this message is used within the broader context of route optimization.\u003c/p\u003e\n"]]],["The provided content describes the \"amount\" field within a JSON representation used for vehicle load adjustments during visits. This \"amount\" is a string representing an integer that modifies a vehicle's load. During a pickup, the amount is added, and during a delivery, it's subtracted. The amount must be greater than or equal to zero. The content advises users to select an appropriate unit of measure for precision, given that this is an integer.\n"],null,["# Load\n\n- [JSON representation](#SCHEMA_REPRESENTATION)\n\nWhen performing a visit, a predefined amount may be added to the vehicle load if it's a pickup, or subtracted if it's a delivery. This message defines such amount. See [loadDemands](/maps/documentation/route-optimization/reference/rest/v1/ShipmentModel#Shipment.FIELDS.load_demands).\n\n| JSON representation |\n|------------------------------|\n| ``` { \"amount\": string } ``` |\n\n| Fields ||\n|----------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `amount` | `string (`[int64](https://developers.google.com/discovery/v1/type-format)` format)` The amount by which the load of the vehicle performing the corresponding visit will vary. Since it is an integer, users are advised to choose an appropriate unit to avoid loss of precision. Must be ≥ 0. |"]]