swift/81205.html">swift guard關鍵字詳解及使用
Swift提供guard關鍵字，guard關鍵字可以簡化繁瑣的判斷邏輯
func buy( money: Int , price: Int , capacity: Int , volume: Int){ if money >= price{ if capacity >= volume{ print("I can buy it!") print("/(money-price) Yuan left.") print("/(capacity-volume) cubic meters left") } else{ print("No enough capacity") } } else{ print("Not enough money") }}以上代碼用guard關鍵字簡化代碼風格
func buy2( money: Int , price: Int , capacity: Int , volume: Int){ guard money >= price else{ print("Not enough money") return } guard capacity >= volume else{ print("Not enough capacity") return } print("/(money-price) Yuan left.") print("/(capacity-volume) cubic meters left")}感謝閱讀，希望能幫助到大家，謝謝大家對本站的支持！
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