1: /^[a-z,A-Z]+$/.test(elementName.value)
2: /^[^\x00-\xff]+\d*$/.test(elementName.value)
3: /^\w$/.test(elementName.value)
2: /^[^\x00-\xff]+\d*$/.test(elementName.value)
3: /^\w$/.test(elementName.value)
调试欢乐多
2: /^[^\x00-\xff]+\d*$/.test(elementName.value)
3: /^\w$/.test(elementName.value)