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第一章中函数声明中列举的例子 #222

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qpc2015 opened this issue Sep 20, 2024 · 0 comments

qpc2015 commented Sep 20, 2024

typedef bool CALLBACK();

//不指定返回类型，此时默认为dynamic，不是bool
isNoble(int atomicNumber) {
return _nobleGases[atomicNumber] != null;
}

void test(CALLBACK cb){
print(cb());
}
//报错，isNoble不是bool类型
test(isNoble);

isNoble同时也不满住typedef定义的无参数

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