I want to find 10 digit numbers with no repeat digits, for example:
1123456789 //fail, there are two 1's
6758951230 //fail, there are two 5's
6789012345 //pass, each digit occurs once only.
at the moment I am using regex but can only match 10digits numbers(it doesnt check for duplicates. I am using this regex:
[0-9]{10}
Can this be done with regex or is there a better way to achieve this?
See Question&Answers more detail:
os 与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…