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Only uppercase and lowercase letters, numbers and underscores are supported, and the length is greater than 3 and less than 30
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Member nameno spaces
Username already exists
Username must be between 2-30 characters
The password input is inconsistent twice
This item can not be empty
The password must be between 6 and 30 characters
The password input is inconsistent twice
This item can not be empty
This item can not be empty
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