鍦℅o璇█涓紝range鍏抽敭瀛楃敤浜庤凯浠ｆ暟缁勶紙slice锛夈€佸瓧绗︿覆銆佹槧灏勶紙map锛夈€侀€氶亾锛坈hannel锛夋垨鑰呮槸鑷畾涔夌殑鏁版嵁缁撴瀯銆備娇鐢?code>range鍙互鏇存柟渚垮湴閬嶅巻杩欎簺鏁版嵁缁撴瀯銆?/p>

浣跨敤range鐨勫叿浣撹娉曚负锛?/p>

for index, value := range data {
// 寰幆浣?/span>
}

• index浠ｈ〃褰撳墠杩唬鐨勭储寮曪紙涓嬫爣锛夛紝濡傛灉涓嶉渶瑕佸彲浠ヤ娇鐢ㄤ笅鍒掔嚎锛?code>_锛夊拷鐣ャ€?/p>

• value浠ｈ〃褰撳墠杩唬鐨勫€笺€?/p>

data鍙互鏄暟缁勶紙slice锛夈€佸瓧绗︿覆銆佹槧灏勶紙map锛夋垨鑰呴€氶亾锛坈hannel锛夈€傚叿浣撴晥鏋滃涓嬶細

1. 杩唬鏁扮粍锛坰lice锛夋垨瀛楃涓诧細

arr := []int{1, 2, 3, 4, 5}
for index, value := range arr {
fmt.Printf("index: %d, value: %d\n", index, value)
}

杈撳嚭锛?/p>

index: 0, value: 1
index: 1, value: 2
index: 2, value: 3
index: 3, value: 4
index: 4, value: 5

2. 杩唬鏄犲皠锛坢ap锛夛細

m := map[string]int{"a": 1, "b": 2, "c": 3}
for key, value := range m {
fmt.Printf("key: %s, value: %d\n", key, value)
}

杈撳嚭锛?/p>

key: a, value: 1
key: b, value: 2
key: c, value: 3

3. 杩唬閫氶亾锛坈hannel锛夛細

ch := make(chan int)
go func() {
for i := 1; i <= 5; i++ {
ch <- i
}
close(ch)
}()
for value := range ch {
fmt.Printf("value: %d\n", value)
}

杈撳嚭锛?/p>

value: 1
value: 2
value: 3
value: 4
value: 5

姝ゅ锛?code>range杩樺彲浠ョ敤浜庤凯浠ｅ瓧绗︿覆锛屽浜庡瓧绗︿覆锛?code>range浼氭寜鐓nicode瀛楃杩唬銆備緥濡傦細

str := "Hello, 涓栫晫"
for index, value := range str {
fmt.Printf("index: %d, value: %c\n", index, value)
}

杈撳嚭锛?/p>

index: 0, value: H
index: 1, value: e
index: 2, value: l
index: 3, value: l
index: 4, value: o
index: 5, value: ,
index: 6, value:
index: 7, value: 涓?index: 10, value: 鐣?