Dead Man Walking
"I've stayed healthy without major illnesses and people often tell me how energetic I am," says Furuhata's 83-year-old customer. "I believe that's because I've been drinking Yakult for many years. But it's not just the drink… receiving Mrs Furuhata's visits [is also] important to my health routine."，这一点在新收录的资料中也有详细论述
However, there is a second problem to deal with. Right now, we don’t know which cells are actually going to change, so we’re updating all of them. The actual pull-reactivity diagram probably looks something more like this:，推荐阅读新收录的资料获取更多信息
There are a lot of things I like about Rust in this function. At a glance, I can tell a1 and a2 are both i32. I can tell that sub_operation_1 and sub_operation_2 both return my custom Result type. And I know this function is extremely unlikely to panic or fail in some unpredictable way. It can fail, but when it does, it bubbles that responsibility up to the caller in a structured, traceable way. You know what failed and where.