描述：给定字符串 num（非负整数）和整数 k，移除 k 位数字，使剩余数字最小。以字符串形式返回（不含前导零）。
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。关于这个话题，搜狗输入法2026提供了深入分析
"Preliminary indication is that we had an oxygen/fuel leak in the cavity above the ship engine firewall that was large enough to build pressure in excess of the vent capacity," Musk said a short while later, adding that "nothing so far suggests pushing next launch past next month".
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SpidercaseFor a slim but extremely functional case, look to the Spidercase, which comes in transparent designs so you can actually see your phone. It's a thin case that's shockproof without being bulky. Plus, it comes with a built-in stand and MagSafe compatibility. The Spidercase is available to shop on Amazon and will ship out on Monday, March 2.