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Nasa said he had "turned a potential tragedy into a success" after an attempt to land on the Moon was aborted because of an explosion onboard the spacecraft while it was hundreds of thousands of miles from Earth.
，更多细节参见safew官方版本下载
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）。
With the capture hooks in place, the automation script handles the actual download process. The approach has been refined significantly across the three versions, but the core idea has remained fairly constant: trick the browser into buffering the entire audio track as fast as the hardware and network allow, rather than in real time.