ios 在 Swift 中执行 while 循环
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do while loop in Swift
提问by Sazzad Hissain Khan
How to write a do-while loop in Swift?
如何在 Swift 中编写 do-while 循环？
回答by Sazzad Hissain Khan
Here's the general form of a repeat-while loop for Swift
这是 Swift 的 repeat-while 循环的一般形式
repeat {
statements
} while condition
For example,
例如，
repeat {
//take input from standard IO into variable n
} while n >= 0;
This loop will repeat for all positive values of n.
对于 n 的所有正值，此循环将重复。
回答by Lorem Ipsum Dolor
repeat-whileloop, performs a single pass through the loop block first before considering the loop's condition (exactly what do-whileloop does).
repeat-while循环，在考虑循环的条件之前首先执行循环块的单次传递（正是do-while循环的作用）。
Code snippet below is a general form of a repeat-whileloop,
下面的代码片段是repeat-while循环的一般形式，
repeat {
// your logic
} while [condition]
回答by Dhaval Gevariya
repeat-while loop, performs a single pass through the loop block first before considering the loop's condition (exactly what do-while loop does).
repeat-while 循环，在考虑循环的条件（正是 do-while 循环所做的）之前首先执行循环块的单次传递。
var i = Int()
repeat {
//below line was fixed to say print("\(i) * \(i) = \(i * i)")
print("\(i) * \(i) = \(i * i)")
i += 1
} while i <= 10
回答by RakeshDipuna
swift's repeat-while loop is similar to a do-while loop in other language . The repeat-while loop is a alternate while loop.It first makes a single pass through the loop block ,then considers the loop condition and repeats the loop till the condition shows as false.
swift 的 repeat-while 循环类似于其他语言中的 do-while 循环。repeat-while 循环是一个交替的 while 循环。它首先通过循环块，然后考虑循环条件并重复循环，直到条件显示为假。
repeat
{
x--
}while x > 0
