Many imperative control structures rely on destructive assignment to do iteration.
许多命令式控制依赖破坏性赋值进行迭代。
Traditionally, selection controls do not directly result in actions-they require an imperative control to activate.
以前，选择控件不直接导致操作，操作通常需要命令控件来触发。
Traditionally, selection controls do not directly result in actions-they require an imperative control to activate.
以前，选择控件不直接导致操作，操作通常需要命令控件来触发。
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