switch statement is a multi branch selection statement.
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All three expressions in a for loop statement may be omitted.
The following options are legal integers for C language ( ).
A. 10110B
B. s0386
C. 0Xffa
D. x2a2
The constant expressions of each case in the switch statement must have different values.
The loop body in a loop statement is allowed to contain more than one statement, which can not appear as a compound statement.