STM32常見錯(cuò)誤error: #268: declaration may not appear after executable statement in block

此錯(cuò)誤中文意思：聲明不能在可執(zhí)行語(yǔ)句后出現(xiàn)。

表示有變量在函數(shù)后面聲明，應(yīng)該改為在函數(shù)開頭聲明變量。

因?yàn)?span id="1xhvv99hnvjz" class="words-blog hl-git-1" style="box-sizing: border-box; outline: 0px; margin: 0px 3px 0px 0px; padding: 0px 18px 0px 0px; font-synthesis-style: auto; overflow-wrap: break-word; cursor: pointer; color: rgb(78, 161, 219); background: url("../img/gitcode-key.png") right center / 14px 14px no-repeat transparent; box-shadow: none;">keil 默認(rèn)編譯標(biāo)準(zhǔn)是C89，解決方法：