Question

尝试从控制台读取由单个字符空间分隔的整数行到2D数组中。我尝试过使用mod <- coxph(Surv(time, status) ~ as.character(sex) + age, data = lung) mod %>% tidy %>% mutate( estimate=exp(estimate), conf.low=exp(conf.low), conf.high=exp(conf.high) ) %>% select(term, estimate, starts_with("conf")) ## term estimate conf.low conf.high ## 1 sex2 0.598566 0.4310936 0.8310985 ## 2 age 1.017191 0.9989686 1.0357467，但不能将其转换为整数。

必须从控制台读取的2D数组作为输入，如下所示

split(separator:maxSplits:omittingEmptySubsequences:)

这是我试过的代码

1 1 1 0 0 0
0 1 0 0 0 0
1 1 1 0 0 0
0 0 2 4 4 0
0 0 0 2 0 0
0 0 1 2 4 0

错误是

var arr = [[Int]]()
for i in 0 ... 5 {
    var a = readLine()?.components(separatedBy: " ")
   var arr[i] = [a?.split(separator: " ", maxSplits: 1, omittingEmptySubsequences: false)] as? Int

}

Answer 1

尝试这个

for i in 0...5 {
    arr += readLine()!.components(separatedBy: " ").map{ Int($0)! }
}

Answer 2

for i in 0...5 {    
  var aux = [Int]()

  readLine()?.split(separator: " ").map({
    aux.append(Int($0)!)
  })
  arr.append(aux)
}

从控制台读取行作为Swift iOS中2D数组的输入

2 个答案: