#每天一个知识点#
简单的仓颉代码块代码出错了，你知道如何修改吗？可以参考后面的错误提示。
```hello.cj
main() {
println("Hello World")
println(a + b)
}
a = 3
b = 2
func add(a: Int64, b: Int64): Int64 {
return a + b
}
```
错误提示：
error: expected declaration, found 'a'
==> ./online_code.cj:5:1:
|
5 | a = 3
| ^ expected declaration here
|
# note: only declarations or macro expressions can be used in the top-level
1 error generated, 1 error printed.
简单的仓颉代码块代码出错了，你知道如何修改吗？可以参考后面的错误提示。
```hello.cj
main() {
println("Hello World")
println(a + b)
}
a = 3
b = 2
func add(a: Int64, b: Int64): Int64 {
return a + b
}
```
错误提示：
error: expected declaration, found 'a'
==> ./online_code.cj:5:1:
|
5 | a = 3
| ^ expected declaration here
|
# note: only declarations or macro expressions can be used in the top-level
1 error generated, 1 error printed.
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