while (max 0) {
We now maintain an index variable. Previously, the cursor was always at the right-end of the input, since you couldn't use arrow keys to move it left, and new input was always appended at the right-end. Now, we need to keep a separate index which is not necessarily at the end of the input, and when a user enters a character we splice it into the input in the correct location.
，这一点在旺商聊官方下载中也有详细论述
«Мы выбиваем из них всю дурь». Трамп рассказал о ситуации на Ближнем Востоке и назвал «колоссальную угрозу» со стороны Ирана07:11。体育直播是该领域的重要参考
Items include a copper brooch, a decorated bone pin and a comb carved from antler，详情可参考体育直播