运行我的python模块的程序在while循环之后总是在第一行返回语法错误

Question

I'm a beginner at python with experience in Java having to write a python module for a Virtual robot challenge for my high schools MESA(A technology based competition) club. I have been trying to solve this weird problem for days and I only have 6 hours left to fix all the bugs in my code! The "invalid syntax" always occurs on the first line after a while loop here is the relevant information: Keep in mind that values have been properly added to the lists

Relevant code:

interestlengthl=list()
interestlengthr=list()
interestpoint=list()

def do_examine(robot):
    examinecount=0;
    while (examinecount<(max(interestpoint)) <-the while loop
            i=2+2 <-a innocent line used as an example, this returned an invalid syntax
    maxpoint=max(interestpoint)
    tomove=(currentposition-(max[interestpoint]-interestpoint(examinecount)))
    robot.step_forward(tomove)
    leftscan=robot.sense_steps(robot.SENSOR_LEFT)
    rightscan=robot.sense_steps(robot.SENSOR_RIGHT)
    if (rightscan==interestlengthr(examinecount):
        robot.turn_right()
        do_rowscan(robot)
    if (leftscan==interestlengthl(examinecount):
        robot.turn_left()
        do_rowscan(robot)
    examinecount+=1
    robot.turn_right(2)
    currentposition=robot.sense_steps(robot.SENSOR_FORWARD)
    robot.turn_right(2)

Relevant error:

File "L:\controllers\controller_zigzag.py", line 35
i=2+2
^
SyntaxError: invalid syntax

Answer 1

While loops should have a colon on them, such as with:

while examinecount < max (interestpoint):

just like your if statements further down. And, as an aside, it's not C - you don't need parentheses around the entire conditional.

Answer 2

语法错误是必须在循环后放置一个冒号，并且括号不平衡： while (examinecount<(max(interestpoint)) -> while (examinecount<(max(interestpoint))):