错误啥意思呀
hello.c: In function 'main':
hello.c:20:10: error: 'jR' undeclared (first use in this function) jR = joneResult(a, b, c); ^~ hello.c:20:10: note: each undeclared identifier is reported only once for each function it appears in
hello.c: In function 'main':
hello.c:20:10: error: 'jR' undeclared (first use in this function) jR = joneResult(a, b, c); ^~ hello.c:20:10: note: each undeclared identifier is reported only once for each function it appears in
2018-01-01
你全错了下面是正确代码,希望采纳!希望采纳!希望采纳!希望采纳!希望采纳!希望采纳!希望采纳!希望采纳!希望采纳!希望采纳!希望采纳!希望采纳!希望采纳!
#include <stdio.h> /* Jone算出结果应该怎么写函数? */ int joneResult(int x, int y, int z) { int sum = x+y+z; return sum/3; //这里是不是应该将sum返回呢? } /* Jack没有算出结果只说了一句话是不是应该用无返回值函数? */ void jackResult(int x, int y, int z) { printf("我算不出来\n"); } int main() { int a, b, c; a = 10; b = 20; c = 30; //Jone的返回值类型是什么? int jR = joneResult(a, b, c); printf("Jone运算结果是:%d\n", jR); printf("Jack运算结果是:"); //Jack没有算出结果只说了句话,是不是直接调用函数就可以了? jackResult(a, b, c); return 0; }
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