Untitled
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| Language | Swift |
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| Snippet Metadata | |
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| Owner | w3xue |
| Created | |
| Modified | |
| Visibility | Public |
var myString:String? = nil
if myString != nil {
print(myString)
}else{
print("字符串为 nil")
}
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| Theme | |
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| Full width | |
| Lines |