想要实现:
do {
let curRandomNum = getRandomInRange(lower, upper: upper)
}while(curRandomNum not in uniqueIntArr)结果却提示了:
do-while statement is not allowed; use ‘repeat-while’ instead |
[解决过程]
1.搜:
swift do while
参考:
语法是:
- repeat {
statements
- } while condition[总结]
最后用:
repeat {
curRandomNum = getRandomInRange(lower, upper: upper)
}while(uniqueRandomArr.contains(curRandomNum))即可。
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