高光显示模式中高光区域黑白交替闪烁,说明高光区域曝光过度,提醒我们要减少曝光量拍摄。
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用while语句编程求1-1000的和,只要把while (i< span>)改成while(i< span>)就可以了。
曝光恰当与否将直接影响着影像的密度、反差、清晰度和色彩再现。
For nations, as for individuals, public speaking is a vital way of expressing ideas and achieving objectives.