A figure is no mistake can be compiled to run, figure 2 is wrong, may be the reason for the error shown in FIG. 3 it is

CodePudding user response:

Because the first operating variables, to define behind other variables, so wrong

CodePudding user response:

As common sense, based on the requirement of the grammar of the ANSI C inside the body of the function or block statements to focus at the beginning of block, a statement before the end of paragraph are not allowed to write something else,