我正在使用Python开发一个软件,在这里我需要读取一个多层次的YAML文件,如下所示:
#Filename: SampleCase.yml
%YAML 1.1
VesselTypes:
- Name: Escort Tug
Length: 32
Breadth: 12.8
Depth: 9
Draughts:
- Name: Draught1
Mass: 500
CentreOfGravity: [16.497, 0, 4.32]
TowingStaples:
- Name: Staple1
Position: [0, 0, 0]
Thrusters:
- Name: Port Propeller
Position: [0, -1, 0]
MaxRPM: 1800
MaxPower: 2525
- Name: Stbd Propeller
Position: [0, 1, 0]
MaxRPM: 1800
MaxPower: 2525
- Name: Ship
Vessels:
- Name: Tug
VesselType: Escort Tug
Draught: Draught1
InitialPosition: [0, 0, 0]
Orientation: [0, 0, 0]
- Name: Tanker
VesselType: Ship
Draught: Draught1
InitialPosition: [0, 0, 0]
Orientation: [0, 0, 0]
Speed: 8
这里有两艘船,分别叫拖船和油轮。有“护航拖轮”和“船舶”两种船型。
#Filename: main.py
import yaml
# Reading YAML data
file_name = 'SampleCase.yml'
with open(file_name, 'r') as f:
data = yaml.load(f)
print(data["Vessels"][0]["Name"])
我可以使用索引号(例如data["Vessels"][0]["Name"]
)访问存储的数据,但我想使用匹配的键访问它们。例如,我想打印名为“拖船”的船舶的左舷螺旋桨的最大转速值。在python中执行此操作的标准方法是什么?
目前没有回答
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