A、<span style="font-size:15px;font-family:'微软雅黑','sans-serif'">在命令行输入命令名</span>
B、<span style="font-size:15px;font-family:'微软雅黑','sans-serif'">单击命令对应的工具栏图标</span>
C、<span style="font-size:15px;font-family:'微软雅黑','sans-serif'">从下拉菜单中选择命令</span>
D、<span style="font-size:15px;font-family:'微软雅黑','sans-serif'">在图形窗口单击鼠标左键</span>
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