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9 lines
215 B
Plaintext
9 lines
215 B
Plaintext
11 months ago
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function isRegisterUserName(s) {
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var patrn = /^[a-zA-Z]{1}([a-zA-Z0-9]|[._]){4,19}$/;
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if (!patrn.exec(s.value))
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{
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alert('非法的用户名格式.');
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return false;
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}
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return true
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}
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