# Debug and Run

Click the Select Device button, choose the simulator to run, click OK, and then click the Debug button to start the corresponding simulator.

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After the simulator starts successfully, the debug page will open. When multiple simulators are running, the debug window corresponds to the simulator with a selected effect in the title on the simulator's running page (as shown in labels 1, 2, and 3 in the figure below).

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Click on a simulator to switch the debug service and perform corresponding debugging.

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