我已经看过几个使用:
包创建Python模块的教程,但在构建时仍然有错误:
:
我明白了:
cpython
我从哪里得到它?我正在使用Rust 1.12。
UPD
extern crate cpython;
use cpython::{PyObject, PyResult, Python, PyTuple, PyDict, ToPyObject, PythonObject};
fn add_two(py: Python, args: &PyTuple, _: Option<&PyDict>) -> PyResult<PyObject> {
match args.as_slice() {
[ref a_obj, ref b_obj] => {
let a = a_obj.extract::<i32>(py).unwrap();
let b = b_obj.extract::<i32>(py).unwrap();
let mut acc:i32 = 0;
for _ in 0..1000 {
acc += a + b;
}
Ok(acc.to_py_object(py).into_object())
},
_ => Ok(py.None())
}
}
py_module_initializer!(example, |py, module| {
try!(module.add(py, "add_two", py_fn!(add_two)));
Ok(())
});
(如答案中所示)答案 0 :(得分:4)
答案 1 :(得分:2)
您必须在#[macro_use]
extern crate cpython;
声明中添加Enabling Cross-Origin Requests in ASP.NET Web API 2属性,要求编译器将crate导出的宏带入crate的命名空间。
import java.util.Arrays;
public class ReverseTheWords {
public static void main(String[] args) {
String s = "hello java how do you do";
System.out.println(Arrays.toString(ReverseTheWords.split(s)));
}
public static String[] split(String s) {
int count = 0;
char[] c = s.toCharArray();
for (int i = 0; i < c.length; i++) {
if (c[i] == ' ') {
count++;
}
}
String temp = "";
int k = 0;
String[] rev = new String[count + 1];
for (int i = 0; i < c.length; i++) {
if (c[i] == ' ') {
rev[k++] = temp;
temp = "";
} else
temp = temp + c[i];
}
rev[k] = temp;
return rev;
}
}