n.Bounded() && Isconst(n.Right, CTINT) { x := n.Right.Int64() if x < 0 { yyerror("invalid array index %v (index must be non-negative)", n.Right) } else if n.Left.Type.IsArray() && x >= n.Left.Type.NumElem() { y
8,9}slice:=array[5:10]fmt.Println("\n修改切片元素之前的切片: ",slice)fmt.Println("修改切片元素之前的数组: ",array)slice[0]=6fmt.Println("\n修改切片元素之后的切片: ",slice)fmt.Println("修改切片元素之后的数组: ",array)}
(m)=%d\n", cap(m)) // error: invalid argument m (type map[int]string) for cap // panic: runtime error: index out of range [5] with length 5 // fmt.Printf("s[5]=%d\n", s[5]) // panic: runtime error: index out of range [5] with length 5 // s[5] = 6 s = ...
packagemainimport"fmt"funcmain(){varch1chanbool//声明,没有创建fmt.Println(ch1)//<nil>fmt.Printf("%T\n", ch1)//chan boolch1 =make(chanbool)//0xc0000a4000,是引用类型的数据fmt.Println(ch1)gofunc(){fori :=0; i <10; i++ { fmt.Println("子goroutine中,i:", i) }// 循环结束后,...
varpmap[int]string// nil mapfmt.Printf(" %#v length %d \n", p[99],len(p)) AI代码助手复制代码 让我们来打印下"" length 0, 我们可以获得键为99的字符串string的值为零. 将值分配给 nil-map, 会引起死机状况的出现: varpmap[string]int// nil mapp["nils"] =19// panic: 对nil-map中的...
fmt.Printf(" %#v length %d \n", p[99], len(p)) 让我们来打印下"" length 0, 我们可以获得键为99的字符串string的值为零. 将值分配给 nil-map, 会引起死机状况的出现: var p map[string]int // nil map p["nils"] = 19 // panic: 对nil-map中的条目赋值 ...
fmt.Printf("len(s)=%d\n",len(s))fmt.Printf("len(m)=%d\n",len(m))fmt.Printf("cap(s)=%d\n",cap(s))// fmt.Printf("cap(m)=%d\n", cap(m)) // error: invalid argument m (type map[int]string) for cap// panic: runtime error: index out of range [5] with length 5//...
}elseift.IsArray() &&x>= t.NumElem() { yyerror("invalid array index %v (out of bounds for %d-element array)", n.Right, t.NumElem()) ... } 如果访问越界就会直接报错。 访问数组的索引是非整数时会直接报错 访问数组的索引是负数时会直接报错 ...
// For example, a slice of type []T is convertible to *[N]T, // but the conversion will panic if its length is less than N. ConvertibleTo(u Type) bool // Comparable reports whether values of this type are comparable. // Even if Comparable returns true, the comparison may still pa...
1 <= num.length <= 35 num 仅由数字(0 - 9)组成 进阶:你计划如何处理由过大的整数输入导致的溢出? 代码: package main import ( "fmt" "strconv" "strings" ) func isAdditiveNumber(num string) bool { if len(num) < 3 { return false } n := len(num) for i := 1; i <= n/2; ...