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Merge pull request #145 from 863056768/patch-1

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还输 > 函数
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Sunface
2022-03-06 10:29:29 +08:00
committed by GitHub
parent 2a8e014329 5ed1a56076
commit fe455d79ba
1 changed files with 3 additions and 2 deletions
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zh-CN/src/basic-types/numbers.md
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@ -40,7 +40,7 @@ fn main() {
assert_eq!("u32".to_string(), type_of(&x)); assert_eq!("u32".to_string(), type_of(&x));
} }
// 以下还输可以获取传入参数的类型，并返回类型的字符串形式，例如 "i8", "u8", "i32", "u32" // 以下函数可以获取传入参数的类型，并返回类型的字符串形式，例如 "i8", "u8", "i32", "u32"
fn type_of<T>(_: &T) -> String { fn type_of<T>(_: &T) -> String {
format!("{}", std::any::type_name::<T>()) format!("{}", std::any::type_name::<T>())
} }
@ -142,6 +142,7 @@ fn main() {
// 整数减法 // 整数减法
assert!(1i32 - 2 == __); assert!(1i32 - 2 == __);
assert!(1u8 - 2 == -1); assert!(1u8 - 2 == -1);
assert!(3 * 50 == __); assert!(3 * 50 == __);
assert!(9.6 / 3.2 == 3.0); // error ! 修改它让代码工作 assert!(9.6 / 3.2 == 3.0); // error ! 修改它让代码工作