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By clicking on the double-click the label to chang
no vote
By setting the corresponding property on the label control, you can control the size. Implement label changes size, you need to dynamically change object property value when the program is running.
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Design a login procedure
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Improving the original landing procedures, judging their user name and password to judge can separate, while limiting the user to enter a maximum of 3, enter an incorrect error message.
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Seeking approximation of LN2
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This can be seen as cumulative sum of issues, and the initial value is 0, every time and accumulated a current item, the current item is 1 for the first time, the current item when a calculation is less than 0.00001, exit loop end operation.
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Lowercase automatically converted to uppercase
no vote
When the user enters in the text box when lowercase alphabetic characters, the application can automatically be converted to the corresponding uppercase letters, capital letters and other characters remain unchanged.
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Multiple form of switch
no vote
Create a form with two call each other, form 1 to form maximum 2 Optional or standard two display States, does not allow the user to drag to change the form manually position 2. Close the form to 2 o'clock, there is text.
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Text box with copy function
no vote
Replication is to retain the original content created on the basis of a copy of copying of the text box to copy the contents of the text box, the original contents of the text box displays one by one to another text box.
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Branches of structured programming
no vote
The branch program includes a branch structure, double branch, branches and branch structures such as nesting, receiving data using the text box and the text box displays the results, and branch structure.
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Design of login interface
no vote
Design a login screen when a user enters a user name and password are correct, go on to the next form or prompt the user to enter again. Click the Confirm button to check the input information, or re-enter the initialization text box.
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Design calculator for arithmetic
no vote
Design a simple calculator, four fundamental operations of arithmetic operations can be carried out. Takes two operands with a text box, displays the computations available label control or a text box.
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Design a read card application
no vote
When the user clicks a certain Chinese character on the interface, can be displayed in the appropriate location of the English pronunciation of words and other information to help readers reading and memorizing, using label controls to display the information.
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