题目内容

How many leading spaces are before the character '2' in the output?printf("%6.2f", 2.71828);

A. 1
B. 2
C. 3
D. 4

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The conversion control sequence "%X.Yf" makes the printf() function prints a floating-point number with the fixed total width of X. (You do not need to consider the special case that the floting-point number has more digits than X.)

A. 对
B. 错

The conversion control sequence "%Xd" makes the printf() function prints an integer with the fixed width of X. (You do not need to consider the special case that the integer number has more digits than X.)

A. 对
B. 错

You can use the conversion control sequence "%X.Yd" to print a fixed width integer number.

A. 对
B. 错

We can assign a value to a symbolic constants.

A. 对
B. 错