C風格的聲明，斯威夫特3

Question

我堅持這個簡單的線條，但不能從斯威夫特2轉換爲雨燕3.

for(index = indexes.lastIndex; 
    index != NSNotFound; 
    index = indexes.indexLessThanIndex(index)) 
{ 

} 

Answer 1

這可能與while環

var index = indexes.lastIndex 
while index != NSNotFound { 
    // do something with index 
    index = indexes.indexLessThanIndex(index) 
} 

被替換