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We report measurements of branching fractions ($\mathcal B$) and direct ${\itCP}$-violating asymmetries ($\mathcal A_{\it CP}$) for the decays $B^+\toK^+\pi^0$ and $B^+ \to \pi^+\pi^0$ reconstructed with the Belle II detector ina sample of asymmetric-energy electron-positron collisions at the$\Upsilon(4S)$ resonance corresponding to 62.8 $\text{fb}^{-1}$ of integratedluminosity. The results are $\mathcal{B}(B^+ \to K^+\pi^0) = [11.9^{+1.1}_{-1.0} (\rm stat)\pm 1.6(\rm syst)]\times 10^{-6}$, $\mathcal{B}(B^+\to \pi^+\pi^0) = [5.5 ^{+1.0}_{-0.9} (\rm stat)\pm 0.7(\rm syst)]\times10^{-6}$, $\mathcal A_{\it CP}(B^+ \to K^+\pi^0) = -0.09 \pm 0.09 (\rm stat)\pm0.03(\rm syst)$, and $\mathcal A_{\it CP}(B^+ \to \pi^+\pi^0) = -0.04 \pm 0.17(\rm stat)\pm 0.06(\rm syst)$. The results are consistent with previousmeasurements and show a detector performance comparable with early Belleperformance.

Measurements of branching fractions and direct ${\it CP}$-violating  asymmetries in $B^+ \to K^+ \pi^0~\mbox{and}~\pi^+ \pi^0$ decays using 2019  and 2020 Belle II data