Go编程语言允许在另一个循环中使用一个循环。
Go中嵌套for循环语句的语法如下-
for [condition | ( init; condition; increment ) | Range] { for [condition | ( init; condition; increment ) | Range] { statement(s); } statement(s); }
以下程序使用嵌套的for循环来查找2到100之间的质数-
package main import "fmt" func main() { /* 局部变量定义 */ var i, j int for i=2; i < 100; i++ { for j=2; j <= (i/j); j++ { if(i%j==0) { break; //如果找到因子,则不是素数 } } if(j > (i/j)) { fmt.Printf("%d is prime\n", i); } } }
编译并执行上述代码后,将产生以下输出-
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2 is prime 3 is prime 5 is prime 7 is prime 11 is prime 13 is prime 17 is prime 19 is prime 23 is prime 29 is prime 31 is prime 37 is prime 41 is prime 43 is prime 47 is prime 53 is prime 59 is prime 61 is prime 67 is prime 71 is prime 73 is prime 79 is prime 83 is prime 89 is prime 97 is prime
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