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分享 var arr = ['-test','_test','.test','test-','test_','test.','test_123','test-123','test.123','123'];
var arr1 = ['asdfasdf','asdf111','1sdjf']
var reg = /^(?![-_.])(?!\d+$)(?!.+?[-_.](\d*)?$)[-\w.]+$/;
for(var i in arr) {
document.writeln(reg.test(arr[i]));
}
document.writeln('<br />-------');
for(var i in arr1) {
document.writeln(reg.test(arr1[i]));
}