在中东，过去从未过去，它甚至还没有过去。
The state of the art for WebAssembly on the web is that every language builds their own abstraction of the web platform using JavaScript. But these abstractions are leaky. If you use WebAssembly on the web in any serious capacity, you’ll eventually hit a point where you need to read or write your own JavaScript to make something work.
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func (opt *Option) ArgVar(val *string) error
五、势的强劲：发展动能与增长后劲蓄势待发