「像鬼一樣工作」：台灣外籍移工為何陷入「強迫勞動」處境
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。关于这个话题，whatsapp提供了深入分析
The fibonacci function uses a while loop with mutable variables. The := operator is used inside the loop (i = i + 1) to reassign. Variables declared with an explicit type annotation like a: i64 = 0 can be reassigned with =.，详情可参考谷歌
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