Untitled
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|---|---|
| Language | Swift |
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| Owner | w3xue |
| Created | 2 years ago |
| Modified | 2 years ago |
| Visibility | Public |
var myString:String?
myString = "Hello, Swift!"
if let yourString = myString {
print("你的字符串值为 - \(yourString)")
}else{
print("你的字符串没有值")
}
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