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Why the value of r c + + to calculate the circumference of the circle area is zero
Time:10-06
Why is zero, calculation results is a question of float?
CodePudding user response:
The scanf ( "% f", & amp; R );//note that quotes
CodePudding user response:
my eyes ah ~
CodePudding user response:
Your compiler does not give you warning? Behind the scanf inside with a specified to input parameters, fewer parameters, the compiler will have warning!
Can't ignore the compiler warnings to 0 to warn compilation