避免多層的if嵌套

if (!this.hasConfigured) {
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            if (this.isKeySubmit) {
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              if (this.selfTransferDevice) {
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                let promise1 = this.putSelfTransDeviceConfig();
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                let promise2 = this.setHPCEvent();
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                Promise.all([promise1, promise2]).then(() => {
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                  this.$message({
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                    type: 'success',
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                    message: i18n.t('hcp_system_save_success')
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                  });
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                });
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              } else {
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                this.setHPCEvent().then(()=> {
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                  this.$message({
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                    type: 'success',
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                    message: i18n.t('hcp_system_save_success')
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                  });
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                });
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              }
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            }