bind:chooseavatar不兼容问题

const v1 = wx.getSystemInfoSync().SDKVersion;
let version = "";
if (!!v1) {
version = v1;
} else {
version = wx.getAppBaseInfo().SDKVersion;
}
if (this.compareVersion(version, '2.21.2') >= 0) {
this.setData({isChooseAvatar:true});
} else {
this.setData({isChooseAvatar:false});
}


,compareVersion(v1, v2) {
v1 = v1.split('.');
v2 = v2.split('.');
const len = Math.max(v1.length, v2.length);

while (v1.length < len) {
v1.push('0');
}
while (v2.length < len) {
v2.push('0');
}

for (let i = 0; i < len; i++) {
const num1 = parseInt(v1[i]);
const num2 = parseInt(v2[i]);

if (num1 > num2) {
return 1
} else if (num1 < num2) {
return -1
}
}
return 0
}