+ input = input[:index-1] + input[index:]
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用，详情可参考WPS官方版本下载
to use the longer, descriptive, name for use in scripts, without，这一点在体育直播中也有详细论述
The US began “major combat operations” in Iran on Saturday morning, shortly after Israel launched a strike against Tehran. Within hours of the US-Israeli strikes, Iran’s Revolutionary Guards reportedly warned tankers in the strait of Hormuz that no ship would be allowed to pass through the world’s most critical oil trade route.