The WHILE loop scans the input array; when an element begins with the required area code, it is added to the output array.
WHILE循环扫描输入阵列;在元素以所需的区域代码开始时,将其添加到输出阵列。
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All together, there is a text input box with a label, a spinner (a combo box or a drop-down) with a label, a button, and a another text area for output.
The argument is the size of the area around the pixel from which to select the new location. It therefore specifies how closely the output resembles the input