Question

当我第一次单击模式打开按钮时，它会在方法中使count = 1递增，并在我单击计数增量的项目中的任何位置每次打印该值。然后关闭模态后，我在搜索屏幕上单击，该方法也使count变量的值增加3，然后当我单击模态按钮时，count值增加，但显示旧值。我尝试了oninit（）和onChanges，但仍然是相同的问题

constructor(private router: Router, private chassieSpecService: ChassieSpecService, private userIdle: UserIdleService, private auth: AuthenticationService) {}
ngOnInit() {
    this.getRecentAddedChassis();
}

getRecentAddedChassis(): void {
    this.count++;
    alert("recet added " + this.count);
    // working code
    this.chassieSpecService.getRecentAddedChassis().subscribe(data => {
        //    console.log("recentAddedChassis   "+data) ;
        alert(this.recentAddedChassis); //showing updated values everytime 
        this.recentAddedChassis = data;

        this.router.navigate(['chassisSpec']);

    });

}

导出类ChassieSpecComponent实现OnInit，OnChanges {

import cv2
import numpy as np

lower = np.array([163, 84, 93],np.uint8)
upper = np.array([187, 237, 255],np.uint8)

x1 = 51
x2=586
y1=111
y2=381
w=50


cam_capture = cv2.VideoCapture(0)
cv2.destroyAllWindows()

Top_left = (x1+1, y1-1-w)
Top_right = (x2+1, y1-1)
top_pixles=abs((y1-1-y1-1-w)*(x2+1-x1+1))


while True:
    _, image_frame = cam_capture.read()

    # Top Rectangle marker
    top = cv2.rectangle(image_frame, Top_left, Top_right, (100, 50, 200), 5)
    rect_top = image_frame[Top_left[1]: Top_right[1], Top_left[0]:Top_right[0]]

    # top red
    hsv_top = cv2.cvtColor(rect_top, cv2.COLOR_BGR2HSV)
    top_red = cv2.inRange(hsv_top, lower, upper)
    top_red_pixle = cv2.countNonZero(top_red)
    print("\t"+str(int(top_red_pixle/top_pixles*100)))

    cv2.imshow("Sketcher ROI", image_frame)


    key = cv2.waitKey(1) & 0xFF
    if key == 27:
     break
cv2.destroyAllWindows()

}``

模态内容在角度6中不会刷新吗？

0 个答案: