rtn.data.image_list = [{a:1,b:2,},{a:1,b:2,},{a:1,b:21,},{a:21,b:2,},] a = [] a.concat(rtn.data.image_list) 等于
时间: 2024-11-25 15:15:51 浏览: 3
当你运行 `a.concat(rtn.data.image_list)` 这段代码时,`rtn.data.image_list` 是一个包含四个对象的数组,每个对象有两个属性 `{a: 1, b: x}` 其中 x 可能有不同的值。`a` 初始为空数组。
`concat()` 方法用于合并两个或更多数组,并将结果添加到第一个数组(在这个例子中是 `a`)。所以,`a.concat(rtn.data.image_list)` 的作用是将 `rtn.data.image_list` 中的所有元素直接追加到 `a` 中,不会改变原始的 `image_list`。
执行这段代码之后,`a` 数组的内容会变成:
```json
[
{ "a": 1, "b": 2 },
{ "a": 1, "b": 2 },
{ "a": 1, "b": 21 },
{ "a": 21, "b": 2 }
]
```
`a` 现在包含了所有 `image_list` 中的对象。如果之前 `a` 是空的,那么 `a` 就等于 `rtn.data.image_list`;如果 `a` 有内容,那它就等于原来的 `a` 和 `image_list` 合并后的结果。
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解释这段函数:FUNCTION fb_get_pointer(a, b , c, d AS FLOAT(), rtn AS INTEGER(), ratio AS FLOAT) DIM i , j AS INTEGER DIM start_i, start_j , stop_j , stop_i AS INTEGER DIM rtn1 , rtn2 AS INTEGER DIM exit_temp , data_temp , flag_temp , exit_temp2 AS INTEGER start_i = start_j = stop_j = stop_i = exit_temp = 0 data_temp = flag_temp = exit_temp2 = 0 FOR j = 0 TO 899 FOR i = 0 TO 1799 IF ABS(a(j) - b(i)) < ratio AND _ ABS(c(j) - d(i)) < ratio THEN 'PRINT j , i, a(j) , b(i), c(j), d(i) , start_j , start_i IF start_i = 0 THEN start_i = i IF start_j = 0 THEN start_j = j IF stop_i < i THEN stop_i = i IF stop_j < j THEN stop_j = j ENDIF data_temp = i exit_temp = 1 flag_temp = 1 ELSEIF data_temp <> i AND i= 1799 AND exit_temp = 0 AND flag_temp = 1 THEN ' PRINT j , i exit_temp2 = 1 EXIT_LOOP ENDIF NEXT i exit_temp = 0 IF exit_temp2 = 1 THEN EXIT_LOOP ENDIF NEXT j rtn1 = INT((start_j + stop_j) / 2) rtn2 = INT((start_i + stop_i) / 2) ' PRINT rtn1 , rtn2 rtn = rtn1 , rtn2 ENDFUNC
这段函数是一个用于获取两个数组中最接近的数值对应的索引的函数。其中,a和b是两个浮点数类型的数组,c和d是另外两个浮点数类型的数组,ratio是一个浮点数类型的参数,表示两个数值之间的最大差距。函数会遍历a和b数组中的所有元素,找到最接近的一组数值对应的索引,并将其存储在rtn数组中返回。如果找不到符合条件的数值对应的索引,则rtn数组中的值为。
解释这段代码:FUNCTION fb_get_pointer(a, b , c, d AS FLOAT(), rtn AS INTEGER(), ratio AS FLOAT) DIM i , j AS INTEGER DIM start_i, start_j , stop_j , stop_i AS INTEGER DIM rtn1 , rtn2 AS INTEGER DIM exit_temp , data_temp , flag_temp , exit_temp2 AS INTEGER start_i = start_j = stop_j = stop_i = exit_temp = 0 data_temp = flag_temp = exit_temp2 = 0 FOR j = 0 TO 899 FOR i = 0 TO 1799 IF ABS(a(j) - b(i)) < ratio AND _ ABS(c(j) - d(i)) < ratio THEN 'PRINT j , i, a(j) , b(i), c(j), d(i) , start_j , start_i IF start_i = 0 THEN start_i = i IF start_j = 0 THEN start_j = j IF stop_i < i THEN stop_i = i IF stop_j < j THEN stop_j = j ENDIF data_temp = i exit_temp = 1 flag_temp = 1 ELSEIF data_temp <> i AND i= 1799 AND exit_temp = 0 AND flag_temp = 1 THEN ' PRINT j , i exit_temp2 = 1 EXIT_LOOP ENDIF NEXT i exit_temp = 0 IF exit_temp2 = 1 THEN EXIT_LOOP ENDIF NEXT j rtn1 = INT((start_j + stop_j) / 2) rtn2 = INT((start_i + stop_i) / 2) ' PRINT rtn1 , rtn2 rtn = rtn1 , rtn2 ENDFUNC
这段代码是一个函数,名为 fb_get_pointer,它有六个参数:a、b、c、d、rtn和ratio。其中a、b、c、d都是浮点数数组,rtn是一个整数数组,ratio是一个浮点数。这个函数的作用是找到a和b数组中最接近的一对数,以及c和d数组中最接近的一对数,然后返回它们在数组中的位置。具体实现是通过两个嵌套的循环遍历数组,找到最接近的一对数,并记录它们的位置。最后计算出这对数的平均位置,并将结果存储在rtn数组中返回。
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