First, check whether the high-voltage cables, etc. are damp due to rain, etc. If so, you can dry the damp parts before starting.
Secondly, check whether the spark plug is damaged. If it is damaged, just replace the spark plug with a new one.
Third, check whether the battery voltage is sufficient. Sometimes, you forget to turn off the lights when you stop, and you may run out of power after a long time. If so, put the car in second gear, step on the clutch, drag with the car (generally not recommended, it is best to find someone to push it), when driving to a certain speed, release the clutch, turn the ignition switch (generally not recommended , The ignition switch should be turned on before pushing it), and the car can start. If there is a problem with the generator, this method will not work.