最新文档中这里需要用! 来获取值 (#837)

This commit is contained in:
Lee_Klaus
2018-12-10 10:26:54 +08:00
committed by Jie Liang
parent 2f66d833d7
commit 2c2097e940

View File

@ -667,7 +667,7 @@ let implicitString: String = assumedString // 不需要感叹号
```swift
if assumedString != nil {
print(assumedString)
print(assumedString!)
}
// 输出 "An implicitly unwrapped optional string."
```