If you withdraw 1, yuan and swipe 2, yuan, you won't enjoy the interest-free period, and you will receive compound interest of .5 ‰ per month (if you withdraw 1, yuan, one day is almost 5 yuan money). Because the credit card line is full after spending 2, yuan, an over-limit fee will be incurred when the interest on cash withdrawal can't occupy the line, and the over-limit fee is 5% of the over-limit part.
You can't repay the cash withdrawal part with the minimum repayment amount.