Untitled
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| Language | Swift |
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| Owner | w3xue |
| Created | 3 years ago |
| Modified | 3 years ago |
| Visibility | Public |
var myString:String?
myString = "Hello, Swift!"
if myString != nil {
print(myString)
}else{
print("myString 值为 nil")
}
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| Full width | |
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