力扣(LeetCode)官网 - 全球极客挚爱的技术成长平台
代码如下:
class Solution {
public int compareVersion(String version1, String version2) {
int i = 0, j = 0;
while(i < version1.length() || j < version2.length()){
long num1 = 0;
while(i < version1.length() && version1.charAt(i) != '.'){
num1 = num1*10 + (version1.charAt(i) - '0');
i++;
}
i++;
long num2 = 0;
while(j < version2.length() && version2.charAt(j) != '.'){
num2 = num2*10 + (version2.charAt(j) - '0');
j++;
}
j++;
if(num1 > num2){
return 1;
}
if(num1 < num2) {
return -1;
}
}
return 0;
}
}