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Flexible electronics attract much attention in recent years due to their potential applications in IoT,such as wearable electronics,flexible displays and implantable devices.Printing technique is considered to be able to accelerate the commercialization of flexible electronics due to its advantages of low cost and large area fabrication.However,challenges like printing resolu tion still exist.Here,we represent our recent work on the high resolution electrohydrodynamic printing technique.Mechano-electrospinning and helix-electrospinning are proposed to fabricate orientated straight or wavy fi bers with micro to nanoscale in large area.These functional micro/nanowires show great flexibility and high performance when integrated into flexible sen sors for real-time monitoring of pressure and strain with applications in IoT.