January 2023
Intermediate to advanced
288 pages
6h 6m
Chinese
Content preview from 移动端AI与ML应用开发：基于iOS和Android
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第
11
章
var sequence = [Int32](repeating: 0, count: SEQUENCE_LENGTH)
这是一些 Swift 代码，用于将字符串拆分为单词，同时删除标点符号和多个空格：
sentence.enumerateSubstrings(
in: sentence.startIndex..<sentence.endIndex,
options: .byWords) {(substring, _, _, _) -> ()
in words.append(substring!) }
这将为你提供称为
words
的数据结构中的单词列表。循环遍历这个非常容易，如果单词
作为关键字存在于
words_dictionary
，你可以将其值添加到序列中。请注意，你将其添
加为
Int32
：
var thisWord = 0
for word in words{
if (thisWord>=SEQUENCE_LENGTH){
break
}
let seekword = word.lowercased()
if let val = words_dictionary[seekword]{
sequence[thisWord]=Int32(val)
thisWord = thisWord + 1
}
}
一旦你在此处完成，
sequence
将包含你编码为
Int32
序列的单词。
11.4.3
第
3
步：扩展数组以处理不安全数据
你的序列是一个
Int32
数组，但 Swift
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.