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Returns a new string in which a specified number of characters from the current string are deleted.
将指定字元数从起始于指定位置的这个执行个体中删除。
youdao
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Returns a new string in which a specified number of characters from the current string are deleted.
将指定字元数从起始于指定位置的这个执行个体中删除。
youdao